I apoligize in advance as I am new to this forum if this is not the correct location to post my issue. I am currently working on my fathers desktop which is a Dell XPS 400. He had a recent power surge which killed his power supply. We ordered a new power supply installed it and now once we boot the computer it starts to load the windows logo and then reboots itself. Then it loads up to window error recovery and gives me the 3 safe mode options, last good known configuration and start windows normally neither of them work.I also tried repairing off of a windows 7 disk and restore to an earlier date but these did not work as well. I tried doing all the safe mode options and safe mode seems to stall for a few seconds on windows/system32/drivers/classpnp.sys and then it reboots back to windows error recovery. I have tried last good known config also. I disconnected all usb devices and any other internal or external hard drives connect. I also checked bios setting and nothing seems to be incorrect. When I put the windows 7 disk in it show I have a previous install of windows 7 but it shows it on the d:/ drive and the c:/ drive is the system reserve. I have a tool called EasyRE which has gparted and a few other things in it when I go to partition editor and it shows: /dev/sda1 is fat 32 Dell Utility /dev/sda2 is ntfs is the system reserve /dev/sda3 is ntfs and I believe thats where the windows 7 install is located When I right click on sda3 it shows that partition to be unmounted. Is there any way to fix this I would like to try and fix the startup this way I dont have to do a fresh install. I know I can also try and install a second OS on the same drive and just have the good install of windows and the old changed to windows.old and transfer data that way. But I would lie to try and do this without having to reinstall all my programs as well. Any suggestion would be helpful, I have searched everywhere on the internet for 2 days and haven't found to much to be the exact problem I am having. I did see a few post about going into command prompt and repairing mbr and fix mbr not sure if those will help or do more harm. I appreciate any ideas that may come my way.