Many people have complained on the Internet that after installing the update, their Windows 10 desktop and Start menu have been set as default - so any wallpapers, icons and shortcuts they set or created had disappeared.
It also began to emerge that some people's files on the desktop were being erased - that's even more serious issue.
Microsoft has finally acknowledged that is a promising step, and the company is actively looking for ways to fix this mess.
According to Windows Latest, Microsoft's support team were able to replicate the issue and have found a solution.
How to fix Windows 10 file deletion problem
It appears that Microsoft’s team has found a way to restore the files. Windows 10 is for some reason making a temporary user account where those files are kept. By creating a new local account, then transferring the data from the temporary account to the new one, you should get your data back.
This is a convoluted method which requires messing around with user accounts – especially local accounts that Microsoft usually tries to dissuade you from doing (and instead create one using your Microsoft account), and it’s not clear if this will help everyone.
As we mentioned, some people are finding that their files are completely missing, and they are unable to find them in the temporary user account.
So, while this fix may help some people, we hope Microsoft is working on a more thorough fix that it will release ASAP.