Laptop with XP Pro. I'm suspicious that some of the OS files are corrupt. I would like to run SFC to check them but even with Admin control of the user account, I cannot seem to access this function. I do not have an admin password for the plain admin account. Is there a way to do this via the CD with XP Pro/SP3? I tried a repair but in doing so I got to the option for "recovery" which simply gave me a C:\Windows prompt. SFC is not a command line option or at least not to my knowledge.
Basically, the question is..."how can I check the validity of the XP Pro system files?" This all got started because I am unable to install XP updates. Fifty Seven updates show as available but when attempting to install, I get an unable to install update error. Some detail behind this seems to vary each time I do another attempt at updating. For example, one of the detail errors is 0X80070057. Another is "cryptographic services are not registered" or something similar. BTW....when trying to install a single XP update, it appears to install OK.