My computer properties not appearing

[narayanaswamy]

Hi all,

i have got this problem in my PC .When i try to get the properties window of My computer,i am not able to get it.I tried windowskey+break,control panel->system,and right clicking my computer.Nothing is working.Can anyone help?Thanks in advance...

[DigeratiPrime]

See if you have a sysdm.cpl file in system32

[narayanaswamy]

Hi,thanks for the advice...

i had the file in the system32.But the size was different from the same file i had in the other XP installation in my PC(i have two XP installations so that if any problem with one-and i usually have when i experiment- i can use the other..).SO i copied the file from there and replaced here..now it works all right..

can anyone pls say what all things like this i hav to keep a back up im case of any data corruption..also is there any software that will revert the recent changes to windows default ones like the 'smart virus renover'..thanks in advance..