How to fix
Windows 11 Installation Assistant error 0xc1900107
on Windows

Hello. I tried to upgrade my Windows 10  PC to Windows 11 through the Installation Assistant but I keep getting the 0xc1900107 error. Any tips on how to fix this would be appreciated.

Windows 11 was released at the end of 2021, but not everyone rushed to upgrade from Windows 10. Some users are attempting to upgrade their systems just now, however, not all are successful. Even though Microsoft has provided an Installation Assistant, people still run into issues when using it.

Recently, users reported that they received Windows 11 Installation Assistant error 0xc1900107 while trying to upgrade. While it is unknown what exactly could be causing this error, it is worth checking if you meet the minimum requirements[ref en-1] and if you have at least 64 GB of free space in your storage.

The same error code was previously recorded to appear in Windows 10 Update Error 0xc1900107 when people tried to install the Windows 10 Anniversary Update and the most common cause for it was that users did not meet the requirements.

Troubleshooting manually could take a while because it is unclear what is causing the issue, so you can try using an automatic solution [d1] to avoid going through all of the possibilities. The repair tool can identify the damaged system components, fix BSODs,[ref en-2] and registry[ref en-3] issues by scanning the system. This software could also be used to free up space by clearing cookies and cache, which should boost the device's performance.

Below you will find a few manual methods that could fix the Windows 11 Installation Assistant error 0xc1900107 and let you upgrade your system. Note that this will take a while, so please follow all of the steps very carefully:

Solution 1. Repair Corrupted System Files

Use Command Prompt commands to repair system file corruption:

• Open Command Prompt as administrator
• Use the following command and press Enter:
  sfc /scannow

• Reboot your system
• If SFC returned an error, then use the following command lines, pressing Enter after each:
  DISM /Online /Cleanup-Image /CheckHealth
  DISM /Online /Cleanup-Image /ScanHealth
  DISM /Online /Cleanup-Image /RestoreHealth

Solution 2. Check Disk

• Ensure that your disk is not damaged. You can perform checks using Administrative Command Prompt:
• If you are using an HDD as your main driver (where your operating system is installed - C: by default), use the following command and press Enter:
  chkdsk c: /f
• If you are using SSD, use this command:
  chkdsk c: /f /r /x

• If you receive an error, type in Y and hit Enter
• Restart your device to perform the check

Solution 3. Update Drivers

Outdated drivers could be the cause of the error. In this case, you can fix it automatically by using [rev id="DriverFix"], which will scan your PC for missing and out-of-date device drivers. Or you can update them manually:

• Open Settings
• Click on Update & Security
• Click on Windows Update
• Click the Check for updates button
• Click the View optional updates option
• Click the Driver updates tab

• Select the driver you want to update
• Click the Download and install button

If the View optional updates link is not available after checking for updates, then Windows Update does not have any new drivers or any updates for other products at that particular time.

Solution 4. Disable Third-Party Antivirus Software

Some security programs might be conflicting with your applications, mistakenly perceiving some files as insecure. Thus, it is known that removing or disabling AV software helped some users when trying to upgrade Windows.

• Right-click the antivirus icon and select Disable
• You can also double-click the antivirus icon and look for a Disable option there

Solution 5. Upgrade with Windows 11 Installation Media

• Visit the official Microsoft website to download Windows 11 Installation Media
• Run the Media Creation Tool and select Create Installation Media for another PC
• Select your USB drive
• Let the Process complete of writing the Installation files to the USB drive
• Click Finish
• On the PC you wish to upgrade, Press Windows + E to open the File Explorer
• Open the Removable drive and click Setup.exe

• Accept the license terms on the next screen
• Confirm the Upgrade options – Files, apps and Settings are kept
• Click Install, and the upgrade should start