How to fix ” there are currently no logon servers available to service the logon request “

How to fix ” there are currently no logon servers available to service the logon request “

there are currently no logon servers available to service the logon request

Symptoms of ” there are currently no logon servers available to service the logon request ” error


In an environment that relies on Windows Internet Name Service (WINS) to resolve NetBIOS names, the error message “There are no logon servers available to service the logon request” appears if you are an administrator and you do one or more of the following:

  • You attempt to remotely administer a trusted domain. For example, you use File Manager to assign share permissions to users from the trusted domain.
  • You attempt to select the trusted domain in User Manager for Domains.

Cause of ” there are currently no logon servers available to service the logon request ” error


The WINS database does not have the proper domain registrations for pass- through authentication. See the more information section below for more details.

This problem occurs most often in environments where the administrator has created a two-way trust between two previously independent domains. Most often, there are WINS servers in each domain and the WINS servers do not replicate their databases to each other.

Resolution


To resolve this problem:

  • Allow WINS dynamic registration.This ensures that Domain Controllers register their DOMAIN<1C> NetBIOS names with the WINS Server.
  • Make certain that WINS database replication is successful between WINS Servers. Missing database entries for domain names may indicate Problems with the WINS Servers and replication.

To work around this problem:

NOTE: Microsoft does not recommend using static mappings in the WINS database for WINS enabled computers.
  1. Run the WINS Administration Utility to add static mappings for the Domain<1C> registrations (of the trusted domain) that are not listed in the WINS database:
          Name:        Master DOMAIN Name
          IP Address:  Address of the Primary Domain Controller (PDC) of the domain
                       
          Type:        Domain Name
      
    

If you are logged on as an administrator at a Domain Controller, remote administration works now successfully. If you are attempting to remotely administer the domain while logged on to a Server (not a domain controller) or Windows NT Workstation, you must add DOMAIN<1C> entries for both the trusted and trusting domains.

More Information


To remotely administer a trusted domain, several pass-through authentication steps must take place. If the WINS database does not have the proper domain registrations, the pass-through authentication fails.

For example, a trust is established between DOMAIN_A and DOMAIN_B. Server PDC_A is in DOMAIN_A and PDC_B is in DOMAIN_B. DOMAIN_A is the trusted (master) domain, and DOMAIN_B is the resource (trusting) domain. To establish this trust relationship, the following NetBIOS names must be resolved to IP addresses, either through WINS or broadcast:

 NetBIOS Name   Description of Use of Name
 -------------------------------------------------------
 DOMAIN_A<1B>  PDC_B uses this to query the PDC of DOMAIN_A
 PDC_A<00>     PDC_B uses this to set up a session with the PDC of   DOMAIN_A    
 DOMAIN_A<1C>  PDC_B uses this to get DC list of DOMAIN_A               
  

With these three names being registered, and if your account has administrator priviledges, the trust can be established and the message “The trust relationship was established successfully” appears. When you reboot the computer, or the first time you attempt remote administration, another NetBIOS name is needed:

NetBIOS Name : DOMAIN_A<1C>

Description of Use of Name : Each Domain Controller in DOMAIN_B uses this name to establish a secure channel with a Domain Controller in the trusted domain.

The Domain Controller (DC) in the trusting domain attempts to create a secure channel with any DC in the trusted domain by making a multicast logon request to the NetBIOS name DOMAIN_A<1C>. This logon request is part of a process that creates a Secure Channel between the two DCs. The logon ID in this logon request is the inter-domain trust account for the trusting domain, DOMAIN_B$. If there is no registration for DOMAIN_A<1C> in the WINS database the error message STATUS_NO_LOGON_SERVERS is returned to the call. The message “There are currently no logon servers available” is then returned to the user.

Tag : there are currently no logon servers available to service the logon request

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How to Find Your BitLocker Recovery Key

How to Find Your BitLocker Recovery Key

How to Find Your BitLocker Recovery Key

Places to look for your BitLocker key:

  • On a printout you saved. Look in places you keep important papers.

  • Saved on a USB flash drive. Plug the USB flash drive in to your locked PC and follow the instructions. If you saved the key as a text file on the flash drive, use a different computer to read the text file.

  • In your Microsoft account. To get your recovery key, go to BitLocker Recovery Keys.

  • In your Azure Active Directory account. For work PCs where you sign in with an Azure Active Directory account, to get your recovery key, see the device info for your Microsoft Azure account.

Or ask someone for help:

  • Ask someone with administrator privileges on the same PC to unlock it with their key.

  • If your PC is connected to a domain (usually a work or school computer), ask a system administrator for your recovery key.

  • If you still can’t get in, you’ll need to reset your PC.
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How to use the SysKey to secure the Windows Security Accounts Manager database

Summary of SysKey


The Microsoft Windows 2000, Microsoft Windows XP, and Microsoft Windows 2003 Security Accounts Management Database (SAM) stores hashed copies of user passwords. This database is encrypted with a locally stored system key. To keep the SAM database secure, Windows requires that the password hashes are encrypted. Windows prevents the use of stored, unencrypted password hashes.
How to use the SysKey to secure the Windows Security Accounts Manager database

You can use the SysKey utility to additionally secure the SAM database by moving the SAM database encryption key off the Windows-based computer. It can also be used to configure a start-up password that must be entered to decrypt the system key so that Windows can access the SAM database. This article describes how to use the SysKey utility to secure the Windows SAM database.


Configure Windows System Key Protection

To Configure Windows System Key Protection, follow these steps:

  1. At a command prompt, type syskey, and then press ENTER.
  2. In the Securing the Windows Account Database dialog box, note that the Encryption Enabledoption is selected and is the only option available. When this option is selected, Windows will always encrypt the SAM database.
  3. Click Update.
  4. Click Password Startup if you want to require a password to start Windows. Use a complex password that contains a combination of upper case and lower case letters, numbers, and symbols. The startup password must be at least 12 characters long and can be up to 128 characters long.

    Note If you must remotely restart a computer that requires a password (if you use the Password Startup option), a person must be at the local console during the restart. Use this option only if a trusted security administrator will be available to type the Startup password.

  5. Click System Generated Password if you do not want to require a startup password.

    Select either of the following options:

    • Click Store Startup Key on Floppy Disk to store the system startup password on a floppy disk. This requires that someone insert the floppy disk to start the operating system.
    • Click Store Startup Key Locally to store the encryption key on the hard disk of the local computer. This is the default option.

    Click OK two times to complete the procedure.

    Remove the SAM encryption key from the local hard disk by using the Store Startup Key on Floppy Disk option for optimum security. This provides the highest level of protection for the SAM database.

    Always create a back-up floppy disk if you use the Store Startup Key on Floppy Disk option. You can restart the system remotely if someone is available to insert the floppy disk into the computer when it restarts.

Note The Microsoft Windows NT 4.0 SAM database was not encrypted by default. You can encrypt the Windows NT 4.0 SAM database by using the SysKey utility.

Tag : SysKey

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What is Office Configuration Analyzer Tool ( OffCAT ) ?

Information

What is Office Configuration Analyzer Tool ( OffCAT )


The Microsoft Office Configuration Analyzer Tool (OffCAT) was removed from the Microsoft Download Center on June 11, 2018.

The Outlook scanning functionality of OffCAT is available in the Microsoft Support and Recovery Assistant for Office 365 (SaRA) tool. SaRA offers several improvements, including the ability to identify and fix specific issues in Office Setup , Outlook, OneDrive for Business, and several other Office programs. You can use the SaRA tool is used to scan for issues in Outlook.

Tag : OffCAT

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Download Windows 10 updates ( KB4015438 )

How to get this Windows 10 updates KB4015438

Download Windows 10 updates ( KB4015438 )


This update can be downloaded and installed from Windows Update. To get the stand-alone package for this update, go to the Microsoft Update Catalog website.

  • Update replacement information
    This update replaces the previously released update KB4013429.
  • File information
    For a list of the files that are provided in this update, download the file information for cumulative update KB4015438. If you’re installing a Windows 10 update for the first time, the package size for the X86 version is 566 MB and the package size for the x64 version is 1,106 MB.

Improvements and fixes


This update includes quality improvements. No new operating system features are being introduced in this update. Key changes include:

  • Addressed a known issue with KB4013429 that caused Windows DVD Player (and 3rd party apps that use Microsoft MPEG-2 handling libraries) to crash.
  • Addressed issue where some customers who have Switch Embedded Teaming (SET) enabled might experience a deadlock or error when changing the physical adapter’s link speed property. This is a known issue in KB4013429. This issue is most commonly seen as a DPC_WATCHDOG_VIOLATION or when verifier is enabled a VRF_STACKPTR_ERROR is seen in the Memory dump.
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How to fix ” We couldn’t update system reserved partition ” error installing Windows 10

Symptoms


When upgrading to, or updating, Windows 10, you might encounter the error “We couldn’t update system reserved partition”, error code 0xc1900104, or error code 0x800f0922.
How to fix We couldn’t update system reserved partition error installing Windows 10

Cause of ” We couldn’t update system reserved partition ” error


The System Reserved Partition (SRP) may be full. The System Reserve Partition (SRP) is a small partition on your hard drive that stores boot information for Windows. Some third-party anti-virus and security apps write to the SRP, and can fill it up.

Resolution


Caution: these steps are complicated, and carry some risk. This is best done by advanced users with experience using the command line. If you make an error in entering these commands, you could put your device in a no-boot situation, and possibly lose data you have stored on the device.

To upgrade your device, you’ll need to free up 15MB of space on the SRP using the appropriate method below, and then try the upgrade again. If you’re updating Windows 10, you need to free up 13MB.

First, determine whether the SRP is GPT or MBR partition style:

  1. Press the Windows key + R. In the Run window that comes up, type diskmgmt.msc and press Enter.
  2. Press-and-hold or right-click on the Disk (such as Disk 0) that contains the SRP, and select Properties.
    that contains the SRP, and select Properties
  3. Choose the Volumes tab.
  4. The Partition Style: line will say either GUID Partition Table (GPT) or Master Boot Record (MBR).

Second, choose which method you need:

  • Windows 10 with GPT partition
    1. Search for cmd. Press-and-hold or right-click on Command Prompt in the results, and select Run as administrator.
    2. At the command prompt, type mountvol y: /s and then hit Enter. This will add the Y: drive letter to access the System Partition.
    3. Switch to the Y drive by typing Y: and press Enter. Then, navigate to the Fonts folder by typing cd EFI\Microsoft\Boot\Fonts. Once there, type del *.* to delete font files. The system may ask you if you are sure to continue, press Y and then Enter to continue.
  • Windows 10 with MBR partition
  1. Press the Windows key + R. In the Run window that comes up, type diskmgmt.msc and press Enter.
  2. Select the partition marked System Reserve. Press-and-hold or right-click on it.
  3. Select Change Drive Letter and Paths.
  4. Choose Add.
  5. Enter Y for the drive letter.
  6. Tap or click OK.
  7. From the Start menu, search for cmd. Right-click Command Prompt from the search results, and select Run as administrator.
  8. In the command prompt, type Y: and hit enter to switch to that drive. Then, navigate to the Fonts folder by typing cd Boot\Fonts.
  9. Type the following and press Enter:
    takeown /d y /r /f .
    Note: You must include the space and the period after the “f”, or the command will not work properly.
  10. Back up the permission to the drive by typing the following and press Enter:
    icacls Y:\* /save %systemdrive%\NTFSp.txt /c /t
    Note: Make sure that all files are showed as successful and none as failed.
  11. Type whoami and press Enter, and then record the user name. Type the following command and press Enter:
    icacls . /grant <username you got from whoami>:F /tNote: Do not put a space between the username and “:F”, or the command won’t work.
  12. Make sure you are still located in Fonts location (Y:\Boot\Fonts) as described in step 8. Then, Type del *.* to delete font files. The system may ask you if you are sure to continue, press Y and then enter to continue.

Restore permissions

    1. Type the following command and press Enter:
      icacls Y:\ /restore %systemdrive%\NTFSp.txt /c /t
    1. A message may display indicating some files failed while processing – this is normal as these files have been deleted subsequent to backing them up.
    1. If the amount of successful files is none, then the command was executed incorrectly; you must have some files successfully processed before continuing.
    1. Adjust the ACL back to System by typing the following and press Enter:
      icacls . /grant system:f /t
    1. Set the owner of the drive back to System by typing the following command and pressing Enter:
      icacls Y: /setowner “SYSTEM” /t /c
    1. Go back to Disk Management and Refresh the data to confirm if the SRP now has a greater percentage of free space. If so, the drive letter can be removed at this point.
    1. Right-click the System Reserved Partition.
    1. Select Change Drive Letter and Paths.
    1. Choose the Y: drive.
    1. Select Remove.
  1. Click OK.
  • Windows 7 or 8/8.1 with GPT partition
  1. Search for cmd. Press-and-hold or right-click on Command Prompt in the results, and select Run as administrator.
  2. At the command prompt, type mountvol y: /s and then hit Enter. This will add the Y: drive letter in order to access the System Partition.
  3. Type taskkill /im explorer.exe /f and press Enter. Then type explorer.exe and press Enter to restart explorer in Admin mode.
    Note While in this mode, some apps (such as OneNote) will not run.
  4. Open File Explorer and put Y:\EFI\Microsoft\Boot\ in the address bar and press enter.
  5. Select the language folders you want to remove and permanently delete them. They will be indicated by a set of four letters, split with hyphen. For example, en-US means U.S. English; de-DE means German.
  6. Optional: Remove unused font files at Y:\EFI\Microsoft\Boot\Fonts.
  7. After removing the files, reboot the device. This will remove the drive letter, and return explorer.exe to a normal mode.
  • Windows 7 with MBR partition

This makes a permanent, but small, increase in the available space of the SRP.

  1. Remove language folders
    1. Press the Windows key + R. In the Run window that comes up, type diskmgmt.msc and press Enter.
    2. Select the partition marked System Reserve. Press-and-hold or right-click on it.
    3. Select Change Drive Letter and Paths.
    4. Choose Add.
    5. Enter Y for the drive letter.
    6. Tap or click OK.
    7. From the Start menu, search for cmd. Right-click Command Prompt from the search results, and select Run as administrator.
    8. In the command prompt, type Y: and hit enter to switch to that drive.
    9. Type the following and press Enter:
      takeown /d y /r /f .Note You must include the space and the period after the “f”, or the command will not work properly.
    10. Back up the permission to the drive by typing the following and press Enter:
      icacls Y:\* /save %systemdrive%\NTFSp.txt /c /tNote: Make sure that all files are showed as successful and none as failed.
    11. Type whoami and press Enter, and then record the user name. Type the following command and press Enter:
      icacls . /grant <username you got from whoami>:F /t

      Note: 
      Do not put a space between the username and “:F”, or the command won’t work.
    12. Open the SRP drive in File Explorer and access the Boot folder, select the language folders you want to remove and permanently delete them. They will be indicated by a set of four letters, split with hyphen. For example, en-US means U.S. English; de-DE means German.
  2. Truncate the NTFS Log
    1. Check the size of the NTFS Log first. From the Command Prompt, type the following and press Enter:
      chkdsk /L Y:

      • If the size is less than 5000KB, you do not need to truncate the file.
    2. To truncate the file, type the following and press Enter:
      chkdsk /L:5000 /X /F
    3. Go back to the Disk Management window. Tap or click the Action menu, and select Refresh. Confirm if the SRP has now a greater percentage of free space. If so, press-and-hold or right-click the System Reserve Partition, and select Change Drive Letter and Paths. Select Y: and choose Remove.
  3. Resize the USN journal, if truncating the NTFS Log doesn’t increase the free space in the SRP.
    1. From the Command Prompt, type the following and press Enter:
      fsutil usn queryjournal Y:

      • This will display the size in hex value. Convert the value to decimal and divide by 1048576, the result will be in MB. (To convert Hex to Decimal: Open the Calculator in Windows, select the View menu, and then choose Programmer. Select Hex, enter the Hex value, and then select Dec)
      • If the journal is 30MB or more, continue with truncating it.
    2. Delete the journal by typing the following command and pressing Enter:
      fsutil usn deletejournal /D /N Y:
    3. Recreate the journal with a new log size value:
      fsutil usn createjournal m=1500 a=1 Y:
  4. Restore permissions
    1. Type the following command and press Enter:
      icacls Y:\ /restore %systemdrive%\NTFSp.txt /c /t

      • A message may display indicating some files failed while processing – this is normal as these files have been deleted subsequent to backing them up.
      • If the amount of successful files is none, then the command was executed incorrectly; you must have some files successfully processed before continuing.
    2. Adjust the ACL back to System by typing the following and press Enter:
      icacls . /grant system:f /t
    3. Set the owner of the drive back to System by typing the following command and pressing Enter:
      icacls Y: /setowner “SYSTEM” /t /c
    4. Go back to Disk Management and Refresh the data to confirm if the SRP now has a greater percentage of free space. If so, the drive letter can be removed at this point.
    5. Right-click the System Reserved Partition.
    6. Select Change Drive Letter and Paths.
    7. Choose the Y: drive.
    8. Select Remove.
    9. Click OK.
  • Windows 8/8.1 with MBR partition

This creates a larger, but temporary, increase in the available space of the SRP

  1. Make sure you have an external drive, formatted as NTFS, with at least 250MB of free space.
  2. Press the Windows key + R. In the Run window that comes up, type diskmgmt.msc and press Enter.
  3. Select the Recovery Partition. Press-and-hold or right-click on it.
  4. Select Change Drive Letter and Paths.
  5. Choose Add.
  6. Enter Y for the drive letter.
  7. Tap or click OK.
  8. From the Start screen, swipe in from the right and select the Search charm, or just start typing to search for cmd. Press-and-hold or right-click Command Prompt from the search results, and select Run as administrator.
  9. In the command prompt, type Y: and hit enter to switch to that drive.
  10. Type the following and press Enter:
    takeown /d y /r /f .

    Note
     You must include the space and the period after the “f”, or the command will not work properly.
  11. Type whoami and press Enter, and then record the user name. Type the following command and press Enter:
    icacls . /grant <username from whoami>:F /t

    Note: 
    Do not put a space between the username and “:F”, or the command won’t work.
  12. When that command completes, type or paste the following and then press Enter:
    attrib -s -r -h Y:\Recovery\WindowsRE\winre.wim
  13. Open File Explorer, and note the drive letter of the external drive you are using (for the rest of these instructions, we will use the example F: – wherever you see F: in these steps, it really means the drive letter of the external drive).
  14. In the Command Prompt, type the following and press Enter:
    mkdir F:\Recovery\WindowsRE
  15. Next, type the following and press Enter:
    xcopy Y:\Recovery\WindowsRE\winre.wim F:\Recovery\WindowsRE\winre.wim /h
  16. Map the new path by inputting the following command and then pressing Enter:
    C:\Windows\System32\Reagentc /SetREImage /Path F:\Recovery\WindowsRE /Target C:\Windows
  17. Once verified the copy was made successfully, type the following and press Enter:
    del Y:\Recovery\WindowsRE\winre.wim /F
  18. Go back to the Disk Management window. Tap or click the Action menu, and select Refresh. Confirm if the SRP has now a greater percentage of free space. If so, continue with the upgrade.
  19. Once the upgrade has completed, move the wim file back to the Recovery Partition and re-map the location:
    1. From the Command Prompt, type the following and press Enter:
      xcopy F:\Recovery\WindowsRE\winre.wim Y:\Recovery\WindowsRE\winre.wim /h
    2. Re-map to the original path. Type the following and press Enter:
      C:\Windows\System32\Reagentc /SetREImage /Path Y:\Recovery\WindowsRE /Target C:\Windows
  20. Go back to the Disk Management window. Press-and-hold or right-click the Recovery Partition, and select Change Drive Letter and Paths. Select Y: and choose Remove.Tag : How to fix ” We couldn’t update system reserved partition ” error installing Windows 10
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Download Windows 10 update ( KB3206632 )

How to get this update KB3206632

This update will be downloaded and installed automatically from Windows Update. To get the stand-alone package for this update, go to the Microsoft Update Catalog website.
  • Prerequisites
    To apply this update, you must have Servicing stack update for Windows 10 Version 1607: October 27, 2016 (KB3199986) installed.
  • Update replacement information
    This update replaces the previously released update KB3201845.
  • File information
    For a list of the files that are provided in this update, download the file information for cumulative update KB3206632. If you’re installing a Windows 10 update package for the first time, the package size for the x86 version is 508 MB. f you are installing the Windows 10 update package of the x64 version or the Windows Server 2016 update package for the first time, the package size is 947 MB.
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How to Find Wifi Password on Windows 7/8/10

How to Find Wifi Password on Windows 7/8/10

If you forgot your Wi-Fi network password, you can find it if you have another Windows PC already connected to your Wi-Fi network. After you find your password, you can use it on another PC or device to connect to your Wi-Fi network.

  1. On a Windows PC that’s connected to your Wi-Fi network, do one of the following, depending on which version of Windows is running on your PC:
    • On Windows 10, select the Start  button, then select Settings  > Network & Internet  > Status  > Network and Sharing Center.
    • On Windows 8.1 or 7, search for Network and, then select Network and Sharing Center from the list of results.
  2. In Network and Sharing Center, next to Connections, select your Wi-Fi network name.
  3. In Wi-Fi Status, select Wireless Properties.
  4. In Wireless Network Properties, select the Security tab, then select the Show characters check box.
    Your Wi-Fi network password is displayed in the Network security key box.

How to Find Wifi Password on Windows 7 8 10

Tag : how to find wifi password on windows 10 , how to find wifi password on windows 8 , how to find wifi password on windows 7

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How to Enable and Disable Your Touchscreen in Windows 10

How to Enable and Disable Your Touchscreen in Windows 10

  • In the search box on the taskbar, you type Device Manager, then you select Device Manager.

  • You select the arrow next to Human Interface Devices => HID-compliant touch screen.

  • You select the Action tab at the top of the window. Then you select enable or disable it.

    How to Enable and Disable Your Touchscreen in Windows 10

    Tag : disable touchscreen windows 10 , enable touchscreen windows 10

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How to change mouse sensitivity (DPI)

DPI is the standard used to measure the mouse sensitivity, expressed as the number of DPIs (dots per linear inch) that a device can detect. By changing the DPI, you can instantly adjust pointer speed for precision tasks, such as in-game targeting or photo editing. The greater the number of DPIs, the higher the mouse sensitivity, and the faster the pointer speed. Some mouse models include dedicated buttons (DPI On-the-fly buttons) you can use to instantly adjust your mouse sensitivity (DPI).

Change mouse sensitivity (DPI) settings

  • If your mouse has DPI on-the-fly buttons, press one of the DPI On-the-fly buttons to create new settings for each DPI button. The mouse LCD will briefly display the new DPI setting.
  • If your mouse doesn’t have DPI on-the-fly buttons,  You choose Control Panel => Mouse => Pointer Options => then you change speed you want => OK

How to change mouse sensitivity (DPI)

Tag : How to change mouse sensitivity (DPI) , how to check mouse dpi

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