Problem: I have a pc running windows server 2012 essentials that fails to boot. Question: Is it possible to reinstall it without losing any data? Background info: Black screen appears after windows logo. can not get past this to login screen where it asks you to press ctrl+alt+del to login. same problem occurs when trying to boot safe mode, repairs don't work, no backups, installation disc doesn't do anything. currently using storage spaces across 5 discs.