How to fix
WindowsPackageManagerServer.exe application error
on Windows

Sometimes, I get a pop-up that says "WindowsPackageManagerServer.exe - Application Error. The instruction at 0x00007FF855909BF3 referenced memory at 0x0000000000000000. The memory could not be read. What does this mean and how can I fix it?

WindowsPackageManagerServer.exe is an executable file that belongs to the Windows Package Manager tool, a utility managing software installation, updating, and removal through commands or scripts.

It is vital in automatically streamlining tasks that involve software management, particularly for those whose work scope falls predominantly under tools like Winget. Users are likely to encounter application errors concerning WindowsPackageManagerServer.exe that could mess with the functioning of tools and affect other related processes.

In the event of an application error in WindowsPackageManagerServer.exe, the included error message may express that the said application was unable to start correctly, or it encountered a problem unforeseen.

Consequently, some functionalities associated with the management of software won't work right, and one may not have smooth updating, installation, or uninstallation of any applications. Performance issues or repeated notifications of errors will make it difficult for users to carry out their tasks of managing software smoothly.

There are a couple of reasons why the WindowsPackageManagerServer.exe application error might occur. These include, most commonly, corrupted or missing system files that prevent the executable from running as it should. Sometimes, issues related to Windows updates or compatibility problems between software versions are the reason for this error.

Background processes or third-party software, such as security programs, could also interfere with the operation of the Windows Package Manager, leading to application errors. Additionally, malware or system registry issues may contribute to the problem, affecting the overall stability of the executable.

Fixing the WindowsPackageManagerServer.exe application error typically involves a combination of steps, starting from basic troubleshooting like updating Windows and checking for software conflicts to more advanced measures such as repairing or reinstalling system components.

Manual instructions for resolving this error will be provided below, starting with simple solutions and progressing to more complex ones. For users seeking an automated way to address underlying system issues, using the [d1] repair tool can be an effective solution for maintaining Windows stability and preventing similar errors in the future.

Fix 1. Update Windows

Keeping Windows updated can resolve compatibility and bug-related issues that might be causing the WindowsPackageManagerServer.exe error.

• Type Updates in Windows search and press Enter.
• When the new window opens, click Check for updates (or Install all if pending) and wait.
• If there are optional updates available, install them as well.
• After updating, restart your computer.

Fix 2. Run Windows Package Manager repair

Repairing the Windows Package Manager can help if the executable is corrupted or malfunctioning.

• Right-click on Start and select Windows PowerShell (Admin) or Command Prompt (Admin).
• Type the following command and press Enter:
  winget source reset
• Wait for the command to complete and restart your PC.

Fix 3. Check for software conflicts with Clean Boot

Third-party software, especially security programs, can interfere with system executables.

• Type msconfig inWindows Search and press Enter to open the System Configuration window.
• Click on the Services tab and check the Hide all Microsoft Services box.
• Click Disable all to disable non-Microsoft services, then click the Startup tab.
• Open the Task Manager, disable all startup items, and close the Task Manager.
• Go to the Boot tab and mark the Safe boot option.
• Click OK on the System Configuration window and restart your computer.
• If the problem is gone, you need to find which software is causing conflicts.
• Enable half of the disabled services in System Configuration.
• Restart and check CPU usage.
• Repeat, enabling services in smaller groups until the issue reappears.
• Once found, keep the problematic service disabled or consider updating it.

Fix 4. Run SFC and DISM scans

Corrupted system files can lead to application errors. Running SFC and DISM scans can help identify and fix these issues.

• Type cmd in Windows search.
• Right-click on Command Prompt and select Run as administrator.
• User Account Control will ask you whether you allow to make changes to the system - click Yes.
• Copy and paste this command and hit Enter:
  sfc /scannow
• Wait for the scan to finish.
• As soon as it finishes, Windows will report whether integrity violations were found and if they could be fixed. Regardless of the outcome, use these commands next, pressing Enter after each:
  Dism /Online /Cleanup-Image /CheckHealth
  Dism /Online /Cleanup-Image /ScanHealth
  Dism /Online /Cleanup-Image /RestoreHealth
  (Note: if you get an error executing this last command, add /Source:C:\RepairSource\Windows /LimitAccess to it and try again).
  
• Close down the Command Prompt and restart your computer.

Fix 5. Reinstall the Windows Package Manager

Reinstalling the Windows Package Manager can fix issues related to the executable.

• Open PowerShell as Administrator.
• Type the following command and press enter:
  winget uninstall WindowsPackageManager
• After uninstallation, type the following command and press Enter:
  winget install WindowsPackageManager
• Restart your computer and test if the error has been resolved.

Fix 6. Check for malware

Malware can cause application errors and disrupt system functionality. You can employ a trusted third-party security app, although Microsoft Safety Scanner or the built-in Windows Defender can do the job just as well:

• Type Windows Security in the Windows search bar and hit Enter.
• Select Virus & threat protection.
• Pick Scan options.
• Choose Microsoft Defender Offline scan and click Scan now.
• Your computer will immediately reboot and begin a deep scan.

Fix 7. Reset system components

Resetting specific system components can help fix persistent application errors.

• Open Command Prompt as administrator.
• Stop the Windows Update-related services by running the following commands one at a time, pressing Enter after each one:
  net stop wuauserv
  net stop cryptSvc
  net stop bits
  net stop msiserver
• Rename the SoftwareDistribution and Catroot2 folders by running the following commands:
  ren C:\Windows\SoftwareDistribution SoftwareDistribution.old
  ren C:\Windows\System32\catroot2 Catroot2.old
  Note: If your Windows installation is not on the C drive, replace "C" with the appropriate drive letter.
  regsvr32.exe /s atl.dll
  regsvr32.exe /s urlmon.dll
  regsvr32.exe /s mshtml.dll
  netsh winsock reset
  netsh winsock reset proxy
• Restart the Windows Update-related services by running the following commands:
  net start wuauserv
  net start cryptSvc
  net start bits
  net start msiserver
• Reboot your computer.

Fix 8. Use the Media Creation Tool to repair Windows

Repairing Windows using the Media Creation Tool can fix deeper system issues while keeping your files and apps intact.

• Visit the official Microsoft website and download Windows 10 installation media. (Windows 11 version).
• Double-click the installer and select Yes when UAC shows up.
• Agree to terms.
• Select Upgrade this PC now and select Next.
• Windows will now download all the necessary files – it might take a while.
• Agree to the terms once again and click Next.
• Before installing, ensure you are happy with your choices (otherwise, you can click the Change what to keep option).
• Click Install to begin the upgrade process.