Big Mess?

Hi, this has turned out to be quite a problem but i'll try and explain the best I can. Somehow i think a virus or malware of some sort is on my pc and done the following:

Prevented me from having my usual administrator rights
Prevents me from running any malware or antivirus from startup or at any other time and gives message not a valid win32 application etc..
internet explorer runs but no web page.
I tried to re-install AVG and adaware but to no avail. ESET cant run so I cant scan for viruses at all. Hijackthis cant run aswell. I could open process explorer and noticed not all the usual services were there as before, then I also noticed a 293524.exe trying to run sometimes??

I have notices that my usual virus packages and Zone Alarm true vector monitoring and some other key services are set to disabled and I cant get access to change them. So I tried to start in safe mode but when I tried to do this the safemode screen came up but my keyboard was disabled which counted down to start in normal mode again. So I changes the setting to start in safe mode in msconfig and rebooted. Now I get blue screen 0xBAC3528, 0xC0000034 etc.. The pc is now set to only start in safemode now yet the virus stops safemode by going to blue screen. What a mess. If I could get back to msconfig and change the start mode to normal at least I could start from there again.

Please can someone help.....I have no idea what to do and no system disks aswell...