Fix: Windows 10 upgrade stuck at 91%

This is a common issue while upgrading which occurs due to the security settings previously configured on your Windows prior to upgrade hence it prevents the upgrade process to complete.

The settings; are usually preconfigured when you install or setup anti virus or other security software’s. Another less common cause for this issue is when the servers at Microsoft which is resolved by itself in a few attempts.

However, before we conclude this as a server fault; we need to do the steps below to fix the issue.

windows 10 upgrade stuck

Upgrading from Windows 7 to 10

  1. First reboot your PC; after you’re logged into Windows as normal do the following:
  2. Turn off Windows Defender and any other anti virus/firewall software’s (you’re using).
  3. Hold the Windows Key and Press R on your keyboard to open Run Dialog OR simply click start and type msconfig in the search followed by Enter.cb1
  4. In Run Dialog type msconfig and click on the Services Tab and place a check on Hide All Microsoft Services then click on Disable Allcb2
  5. Click Start Up Tab and click Disable All.cb3
  6. Click Apply and Restart.

You should now be able to upgrade easily from Windows 7 to 10. If you are upgrading from Windows 8 to 10 then follow the clean boot procedure from

Some users also reported upgrade process getting stuck at 99% for which we have another article that can be viewed at windows 10 upgrade stuck at 99%

Kevin Arrows
Kevin is a dynamic and self-motivated information technology professional, with a Thorough knowledge of all facets pertaining to network infrastructure design, implementation and administration. Superior record of delivering simultaneous large-scale mission critical projects on time and under budget.

Expert Tip

Fix: Windows 10 upgrade stuck at 91%

If the issue is with your Computer or a Laptop you should try using Restoro which can scan the repositories and replace corrupt and missing files. This works in most cases, where the issue is originated due to a system corruption. You can download Restoro by clicking the Download button below.

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