repair vista file

  highside 08:38 02 Sep 09
Locked

In trouble again, I have a fault (Vista Home Premium)which occured after some RAM changes an adding a printer.
The new RAM is recognised and memory check is good.
The fault is documented on the web but but the recovery does not work in my case.

file:\windows\system32\ntroskrnl.exe appears to have corrupted (status 0xc0000221)
I have a disk with the file on it how can I transfer it? It is on my Upgrade Vista Home Premium Disc which does not show a Repair selection when inserted only the option to instal.
Can I run the upgrade disc over again as it is?
Or there a way of transferring one file?
(The upgrade disk took my PC from Vista basic to Home.)
The original recovery disk is the one from Samsung which has Vista Basic install on it.
(Incidently system restore no longer restores since this happened.)
The PC starts OK in safe mode and can then be reset for normal use but when started from cold the fault occurs and the safe mode option appears.
Thanks alot

  highside 09:01 03 Sep 09

resolved

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