http://windows8forums.com/windows-8-discussion/18137-after-two-weeks-windows-8-i-find-least-stable-os-2.html#post24693 I've decided to move my comments about Windows 8 as "the least stable OS" to a new thread because my problems continue. My question is: What to do when you get the following message on "the most stable", Windows 8, operating system? "The drive where Windows is installed is locked. Unlock the drive and try again." I got that message after the following: I wanted to open a PDF file from my customer on OUTLOOK - a regular, every-hour procedure - and my computer froze. After I restarted, I could not get passed the login screen - my computer used to enter the "blue background color and nothing else" mode. I decided to use USB Flash drive to repair but it failed. I wanted to refresh my Windows 8, but I got that message: "The drive where Windows is installed is locked. Unlock the drive and try again." I truly believe that Windows 8 and I have the same personal feeling about each other. What should I do besides another "clean install" of Windows 8?