Just like what the title said. Did the update via windows update, my pc rebooted couple times, once it was done my game shortcuts were all blank. I booted into bios and it shows my hard drive. When restarted loaded up disk management and DISK 1: UNALLOCATED. WTF!
i've seen this happening, have a look here: https://www.reddit.com/r/Windows10/comments/4vyifo/bug_windows_10_anniversary_update_tanked/
Heard about this too, the drives apparently are not wiped or RAW or unallocated, as rolling back to the previous build fixed it
That's the same bug I had during the insider days. It should be accessible in ubuntu/older windows. Just don't run chkdisk or you will lose the data.