I first noticed this when I wanted to take a screenshot and i realised that paint was not on the list to use the program and it disappeared from my start menu, even system sound i could not find it in the list, also the system games, notepad,wordpad, messenger (the old msn one). The software I have installed is fine, computer is fine from viruses as well, it's just the microsoft system programs disappeared. (Office 2003 and 2007 is fine) Also my Messenger refuse to sign in onto my account, using Yahoo was fine, tried signing it in (msn account) with trillion, won't work, but it did work when I logged into messenger via internet browser! Live Messenger: wlcomm.exe - Application Error The instruction at "0x7c809e3a" referenced memory at "0x9e037275". The memory could not be read. Click ok to terminate the program.. I don't want to restore from a previous point because I don't know exactly the date the problem occurred, so I probably restore on a wrong date and lose what I have/bring back some uninstalled games I got rid of. I tried going into Control Panel --> Add/Remove Programs --> Add/Remove Windows Components > Accessories and Utilities but I don't have the windows discs it ask me, because I had my computer formatted from a local computer store. Anyone know what is the problem? Tried google but didn't help with my specific problems. Would be nice if anyone could really help me! Thank you.