my XP pro has got some problems.certain things like regedit,run,etc are disabled.a msg comes "this operation has been canceled due to restrictions in effect on this computer.please contact your system adminstrator". also XP is slow ispite of 512 MB ram.it gets stuck once in a while too. i cant acces the msconfig too. sumtimes comp automaticaly restarts.some aplications like WMPlayer,Y! msngr etc are slow too. i guess theres a foldre virus too,in most folders thers a nothr exe file with folder icon having the same name as parent folder. i cant access any drive C: or E: etc directly from the addres bar , it says "access to resource C: has been disalowed".wats the problem ? how 2 fx it?>