How to Fix Windows 10 Upgrade Assistant Stuck at 99%

Windows 10 Upgrade Assistant Stuck at 99%

The Windows 10 upgrade assistant is a tool that allows users to upgrade their Windows operating system to a newer version. However, some users have reported that the upgrade process gets stuck at 99%, and the system does not proceed any further. This can be frustrating and prevent users from accessing new features and security updates. In this article, we will explore possible causes of this issue and provide solutions to fix it.

Why does the Windows 10 upgrade assistant get stuck at 99%?

There are several potential reasons why the Windows 10 upgrade assistant may get stuck at 99%. These include:

  1. Corrupted system files: If some system files are damaged or corrupted, the upgrade process may fail to complete.
  2. Insufficient disk space: The upgrade process requires a significant amount of free space on the hard drive. If there is not enough space, the process may get stuck at 99%.
  3. Faulty hardware: If there is an issue with the hardware, such as a failing hard drive or faulty RAM, it can cause the upgrade process to fail.
  4. Conflicting software: Certain software programs or drivers may conflict with the upgrade process and cause it to get stuck at 99%.

In general, any issue that prevents the upgrade process from completing successfully can cause the Windows 10 upgrade assistant to get stuck at 99%.

Solutions to fix

Here are some solutions to fix the issue of Windows 10 upgrade assistant getting stuck at 99%:

Method 1: Wait and be patient

  • Sometimes, the upgrade process may take longer than expected. It is recommended to wait for a while and let the process complete on its own.

Method 2: Disconnect all external devices

  • Disconnect all external devices from the computer, such as USB drives, printers, or scanners. This can help resolve any potential conflicts with the upgrade process.

Method 3: Free up disk space

  • Ensure that there is enough free space on the hard drive for the upgrade process. If necessary, delete unwanted files or move them to an external storage device to free up space.

Method 4: Disable antivirus software temporarily

  • Antivirus software can sometimes interfere with the upgrade process. Temporarily disable the antivirus software and try the upgrade process again.

Method 5: Use the Windows 10 Update Assistant Troubleshooter

  • Use the built-in troubleshooter in the Windows 10 Update Assistant to detect and resolve any issues that may be causing the upgrade process to get stuck.

Method 6: Perform a clean boot

  • A clean boot can help isolate any software conflicts that may be preventing the upgrade process from completing. Follow the instructions from Microsoft to perform a clean boot.

Method 7: Perform a system restore

  • If none of the above methods work, try performing a system restore to return the computer to a previous state before the upgrade process started. This can help resolve any issues that may have occurred during the process.

Note: Before attempting any of the above methods, it is recommended to back up important files and data to avoid any data loss.