Hello everyone, I came to this forum because I have some problems with my Windows 7 installation and i hope i may get here some good help First, here are some info about my Instalaltion process: My hdd is a 320 gb sata drive from WD, when i wanted to install Windows 7 i had to get some free partition, so i split my E: partition to a ~140 GB E: drive and anotehr ~20 GB F: drive, then i installed windows 7 on the F: drive and after completion of the installation process i changed the drive letter of the F: partition to C: and after 2 weeks i saw no need for xp so i deleted it (but the xp partition is still there). It worked normally until yesterday when it for the first time gave me a bluescreen with the STOP code: 0x00..4F(0x00..3, ... , ... , ...) I googled for a solution and found out thatit may be related to a HDD error so i changed the cables and booted into the error recovery console and ran the startup repair tool as well as the chkdsk utility on all drives, i noticed that c: isn't my windows 7 partition anymore but the old xp one. so i used system restore but now it doesn't even give me a bsod but i see a mouse on a black screen for a while and then it restarts. I don't know what to do now so i am asking you for help. I think the error maybe related to the windows 7 installation and that the windows xp and windows 7 partition should be replaced by each other (is that possible ?), i mean moving the windows 7 partition from F: to C: Thanks in advance.