System Drive C: would not boot up. Black screen message that boot disk had not been found.
I connected C: through SATA expansion card and was able to boot OK, but only once.
On restarting PC I saw this dialogue box: SCVHOST.EXE "Instruction 0x77c47e9f... refernced memory at 0x00000000... memory could not be read."
On using any of the three obvious choices - OK, Cancel or clicking the X in the corner - a new box would appear with a message on "System shutdown... NT Authority\System... Remote Procedure Call (RPC) Service..." and a 1 minute timer that starts the shut down process.
The boot up takes about 5 minutes and shutdown about the same, but I have exactly 60 seconds to access anything once Windows is running (very slowly) and no task bar or Start button. I also cannot access My Computer Properties either. So, each time it has shutdown before I can start Malwarebytes or Spybot SD.
I tried starting XP in Normal,Safe,Safe with C prompt and Last Known Good Configuration, but aslways got the same result.
I tried booting to Recovery Console (previously installed on HDD), but this gives a BSOD and advises running antivirus check and checking my HDD. I can only powerdown to get out of the BSOD, there appears to be no way to move forward from it.
I have removed the HDD and installed it in another PC, then run Avira AV and Kapersky's free scanner. Avira found one file, which it quarantined, Kapersky found nothing. I could not access My Documents this way.
I reinstalled the HDD in the original PC and booted using Kapersky Recovery Disk running the included antivirus. This appeared to work, but found nothing.
Attempting to boot to XP gives the same results as before.
Running Recovery Console from my XP CD and running:
C:\>Chkdsk /r gives: "The volume appears to contain one or more unrecoverable problems"
C:\>dir gives: "There is no floppy disk or CD in the drive."
How can I regain control long enough to remove whatever malware is causing this?
Edited by greeneyesx63, 04 August 2011 - 02:23 AM.