I wiped the boot disk using disk utility in the recovery partition of my users MBA. Selected restore from Time Machine... everything works fine and when it is finished it reboots... and then goes right back to the recovery partition. I can even select the startup disk but then it still doesn't boot. Either freezes at a gray screen or goes back to recovery. wtf. I've restored 3 or 4 times now. Nothing. It won't even let me just install ML fresh because it says my apple ID didn't purchase it so I have to try to track down the user. Just extremely annoying. idk why this is happening. Same exact thing happened on my personal MBA last week and I feel like I just restored every single one of my 20+ TM backups until one eventually worked. With this user I only have the 1 backup I created on a temp storage drive. Tried resetting PRAM, booting to safe mode (doesn't work). So frustrating.