As you know, each time you log out of your Windows 10 computer, it will take you to the login screen where you can switch users or log back in. But there are instances where Windows 10 remains stuck on the signing out screen, along with a blue spinning circle and all you can see is the process of your computer signing out, however, it does not progress and only gets stuck there. Thus, in this post, you will be guided on how you can resolve such an issue on your Windows 10 computer.
So if you are one of the users who experience the same problem, there are several fixes you can check out if your computer is stuck on the signing out screen with a blue spinning circle. You can try to force shutdown your computer or troubleshoot the problem in a Clean Boot State. You could also try to check the status of the User Profile Service or repair User Profile, as well as run System Restore. For more details, refer to each one of the suggestions provided below. But before you troubleshoot the problem, make sure that you are logged in to your computer as an administrator.
The first thing you can do is to force reboot your computer as this simple fix could help in fixing the problem. This option is quite simple, just make sure that before you do it, you have to save all your work.
It is possible that some third-party application is causing your computer to get stuck in the signing out screen. So you can try putting your computer in a Clean Boot State and see if it fixes the problem.
If forcing your computer to shut down or putting your computer in a Clean Boot State didn’t fix the problem, you can try to check the status of the User Profile Service since it is the one responsible for loading and unloading user profiles. Thus, if this service is disabled or stopped, you will no longer be able to sign out or sign in successfully.
In this second option, you can try to repair the corrupted profile using the Registry but before you proceed, make sure to create a System Restore Point and then follow the steps below.

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Error Causes
Before we move on to the discussion of fixing the underlying causes for error 103, it is important to understand all those programs that are most likely to generate this error. A list of all such programs is outlined below as follows.
Some Windows 7 and Windows 8.1 users reported experiencing a Compare Exchange128 error when trying to upgrade to Windows 10. The error reads, “You can’t install Windows 10 because your processor doesn’t support CompareExchange128”. In order to upgrade to Windows 10 (64-bit), the CMPXCHG16B instruction must be present. If you receive this error, this mostly means that your CPU doesn’t have the CMPXCHG16B instruction.
Error CausesThe CompareExchange128 error normally occurs due to two possible reasons:
One main requirement to upgrade to Windows 10 is for your CPU to have the CMPXCHG16b instruction. You also need the right BIOS version to guarantee a smooth installation. See below on how to manually fix this issue.
NOTE: If you don’t feel confident using the manual methods listed below, it’s highly advisable to get help from an expert technician. If you don’t know someone, you can also use an automated tool to fix this.
Before performing any fixes, try to determine first if the cause of the error is due to your CPU lacking the CMPXCHG16b instruction. You can use a CPU Info tool that provides complete details about your processor, memory, and motherboard. If you’re looking for more in-depth information, you might also try command-line utilities. But, the safest and easiest way to check this is by simply searching online. Try using the search query: <CPU Model> CMPXCHG16b
This method will download the latest BIOS from your motherboard’s manufacturer. This makes sure your CPU has the CMPXCHG16b instruction needed to complete the Windows 10 64-bit installation. To update your computer’s BIOS, complete the following steps:
If updating the BIOS doesn’t work, what you can do is install a 32-bit version of Windows 10 instead of the 64-bit version. Here’s how to do this:
If the above two methods don’t work, there’s a great chance that this error occurs because of an outdated processor/motherboard. Your next possible solution is to buy an updated model that’s fully compatible with 64-bit Windows 10.
If all else fails, you might want to consider using this powerful automated tool to quickly fix the problem and any other computer-related issues.