I have never personally experienced this problem, nor do I know anyone who has, however I've done some research and there seems to be a number of possible causes, all of which more or less stem from an issue with the registry.
I don't know what OS you're using, but my research seemed to pull up all most exclusively issues relating to Win8 rather than Win10, so I assume you're on Win8?
A couple of issues suggested an AMD uninstall could be the issues, however I've ruled this out since it was due to a lack of Win8 support back in 2013, which I doubt would still be the case now.
Another suggestion is that CCleaner can corrupt the registry if you've used that?
The third thing I could find is a Windows Defender issue that when it detects a change to a certain .dll (I can't remember which off the top of my head), can cause this.
The only working solution was, ultimately, reinstall Windows, however I did find that some people said there is a workaround if you take the following steps to access, move and delete (etc.) files:
1) Run RegEdit (in some cases, people needed to do this in Safe Mode)
2) Goto "HKEYLOCALMACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System"
3) Find a DWORD key named "EnableLUA" and set it to 0.
4) Reboot the machine.
Those steps fixed the problem with accessing files for most people, however prevents access to Windows 8 apps, and has its own security issues, however there is nothing stopping you from doing this, backing up all your data (just in case) and then reinstalling Windows.
Here are a couple of my sources: click here hope this helps.