Hello. I am running Windows 7 on an HP Pavilion p6774y PC. I recently encountered a problem where my computer cannot boot up. I don't usually shut off my computer when leaving it, I just go to the login screen and put it to sleep. However, this time, I did turn it off. When I tried to turn it back on again, the Windows 7 boot animation came, but then it froze on that screen. I waited a while, and after I came to the conclusion that it was not going to start, I had to force quit it. This time, I tried to run the Startup Repair, but that didn't work as well. After two very brief flashes of a command line, it showed a Windows Vista/7-ish wallpaper (auroras, sunbeams, etc.) and a cursor which I could move. The same thing happens with System Repair, etc. I tried downloading a Windows 7 Recovery Disc iso and burning it to a disc, and then booting from my CD drive, but it just goes back to the normal startup, with the freezing at the logo. I don't have any idea what to do, please help!