Recently I was trying to find why out Windows 10 updates were failing on my computer. The Driver Verifier utility indicated a problem with
dcrypt.sys, a file that had been left in
%systemroot%\system32\drivers even after I had uninstalled DiskCryptor several years ago.
I made the mistake of deleting
dcrypt.sys myself, but when I did that, Windows stopped loading. My inference is that, despite its being third party software, its presence was somehow required by the Windows startup sequence. (I ended up solving this by reinstalling Windows completely.)
What would have been the proper way to get rid of such a file?