when i start the system after installing the third ram it gives the error message
windows could not start because the following file is missing or corrupt:
system32\drivers\pci.sys.
you can attempt to repair this file by starting windows setup using the original setup cd-rom.
Select R at the first screen to start repair.
when i did it said
File setupdd.sys could not be loaded.The error code is 4
Setup cannot continue .press any key to exit.