Windows 11 Insider Preview installation stuck at 35% or 85%?
You want to know the reason but there is no valuable information.
This puzzle has been cracked byMiniTool Software.

In this post, we will show you the causes of this issue and the corresponding solutions.
However, the Windows 11 installation process may not be smooth.
The entire Windows 11 installation process may even take hours.

In some cases, the installation process may be stuck at a percentage for a long time.
In a situation like this, you should wait until it jumps to the next percentage.
But, weirdly, you couldnt see what causes the issue of Windows 11 installation stuck.
![]()
You dont know the cause.
So, you also dont know how to continue the Windows 11 installation process.
However, MiniTool finds the causes and knows how to make the installation process go back to normal.
![]()
In the following content, we will show you the causes and solutions.
Incompatible Programs
However, the Windows 11 update tool doesnt show you which one is the culprit.
Now, you know the potential causes of the issue.
![]()
you better do something to solve the issue, bringing Windows 11 update back to normal.
In the next part, we will show you the solutions you could try.
It could even freeze your setup.
But usually, you dont know which is the real cause of the issue.
If external hard drive freezes computer when plugged in, how to fix?
When updating your system to Windows 11, you dont need to use these peripherals.
After that, you could check whether the Windows 11 installation goes well.
If the issue persists, you should try the next method.
This method is worth trying if you couldnt successfully update to Windows 11.
If you have installed it on your system, you could uninstall it to have a try.
How to uninstall VMware Workstation Player from your rig?
Here is a simple guide:
However, you may dont have this software installed on your PC.
If so, you could use the next try.
Try 2: Remove Virtualbox.exe
The VirtualBox.exe file is also the main cause of this issue.
You could remove this file from your rig to have a try.
Perhaps, you are not sure whether there is a Virtualbox.exe file on your gear.
You could just search for it and remove it if it is there.
How to remove remnants of uninstalled software in Windows 10?
This post will show you two methods to completely uninstall a program.
After using these two methods, the Windows 11 installation process should successfully continue.
When I am upgrading my computer to Windows 11, the Windows 11 installation stuck at 35%.
I dont know why.
I also dont know how to make it go back to normal.
But after uninstalling the incompatible program like the method introduced in this article, the issue is solved.
You could use MiniTool Power Data Recovery, professional Windows data recovery software to rescue them.
After scanning, you could check the scan results to find the files you want to recover.
With the free edition, you are allowed to recover up to 1GB of files.
Hope they can help you out.