I've been through every kb and thread I can find that is similar, and am still having issues. I have Build 8.0.18354 running an XP image upgraded from 7. It worked fine for a while, but yesterday stopped. Doesn't recognize that there is a virtual hd. Can't make any changes to the hdd, or it errors out. I've tried repairing but windows doesn't even recognize a virtual disk. Parallels mounter won't mount it. I need to recover this data! Any help would be appreciated. Thanks