From what I’ve been reading, the Windows 10 Anniversary Update has been doing some … odd things to peoples computers. First is the whole thing about switching some group policies to only work on the Enterprise or Education versions, making the ‘Pro’ version less useful for businesses as those settings can’t be centrally managed anymore as of this update. The next issue was a black screen or odd fonts in Steam, Steam has since updated to fix these issues, but it is odd that some features that Steam uses would just suddenly be removed or Locked in Windows 10.
The newest issue so far is an issue with machines with multiple partitions on their main harddrive. It appears that extra partitions may be damaged in some way, making data inaccessible. from what I have been reading, (My main computer hasn’t upgraded to the Anniversary update yet, I have a secondary NTFS partition on my Windows drive) Other NTFS/Windows partitions may be unreadable for a short period of time, but they should start working after a short time. Linux and other partitions? It’s possible that you may need to do a re-install of the Linux system. Hopefully all of your files survived in that situation. If your other operating systems are on different drives they won’t be affected by this issue.
If all of this turns out to really be happening as much as people on Reddit are talking about it, Microsoft is really doing some shady things with their OS. At least it appears that other drives are safe as of now… I have been working on Linux more again as I don’t really feel that I can trust Microsoft to let things work properly. If only SteamVR actually worked on Linux…