I have a toshiba satellite m45-ss331 that runs windows xp home edition. I was checking my email through yahoo, then it froze. I figured it was on too long. I manually turned it off. I turned it on 5 hours later and it was stuck for 8-10 minutes or more on the windows loading screen. The blue screen popped up and showed and error message. "c000021 {bad image checksum} The image Normaliz.dll is possibly corrupt. The header checksum does not match...." I want to save my files before I reformat my computer. If I can reformat my computer? Any ideas to how I can fix this problem without reformating or how I can get my files? I can reformat it later once I retrieve my files for work and school. MLADS

This is probably a hardware issue and not an OS issue. My first thoughts are the CPU could be going bad, or you have bad RAM. "So won’t you give this man his wings What a shame To have to beg you to see We’re not all the same What a shame" - Shinedown

Try removing and re-seating the RAM sticks. Also, watch the POST screens at start up to see if the drives and hardware are being configured. If you don't see any POST screens then boot into the BIOS (setup) screens and disable fast boot and any Logo screens.

Normaliz.dll has something to do with Windows Media Player 11 and/or Windows Internet Explorer 7. Normaliz.dll will NOT be on your XP CD as XP comes with WMP 9 and Internet Explorer 6. And no, not even a compressed version of Normaliz.dll is on the XP CD. Try going to this site and downloading a copy of the dll file and extract it to C:\WINDOWS\System32 and see if that works for you. http://dllcity.com/download-free-dl...