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1 9th March 15:09
steve smith
External User
 
Posts: 1
Default Invalid System Disk


I have a Windows XP computer that gives an "Invalid System Disk" error when it attempts to boot. I can boot off of a Windows 98 floppy and browse the drive and the files are all there and they look okay. I ran diagnostics on the drive and it passed all the tests. I then placed the drive in another computer and scanned for viruses. A couple of Trojans were found and that was it.

It appears there's a problem with the boot sector, or the Windows XP boot files. I'm not sure how to fix this. I placed the drive back in it's computer and booted off the Windows 98 floppy and ran the fdisk /mbr command. The command ran without an error but it didn't solve the problem. I then tried the Sys A: C: command. I know this works for Windows 9x, but I doubt it should be used on Windows XP. Maybe I made the problem worst. The computer will now boot off the hard drive, but it shows the Windows 98 splash screen and then goes to a C: prompt. I can see the files with the dir command, but I don't know how to restore the Windows XP boot files. Is there an XP equivalent to the Sys command? Any ideas would be appreciated.

Thanks,
Steve Smith
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2 9th March 15:09
charlie cassidy
External User
 
Posts: 1
Default Invalid System Disk


Boot from the XP install CD and select R for repair to boot the Recovery
Console. Then use "fixboot" and "fixmbr" to fix the boot record.

More info on the Recovery Console can be found here:
http://www.microsoft.com/windowsxp/home/using/productdoc/en/recovery_console_overview.asp

-Charlie


I have a Windows XP computer that gives an "Invalid System Disk" error when
it attempts to boot. I can boot off of a Windows 98 floppy and browse the
drive and the files are all there and they look okay. I ran diagnostics on
the drive and it passed all the tests. I then placed the drive in another
computer and scanned for viruses. A couple of Trojans were found and that
was it.

It appears there's a problem with the boot sector, or the Windows XP boot
files. I'm not sure how to fix this. I placed the drive back in it's
computer and booted off the Windows 98 floppy and ran the fdisk /mbr
command. The command ran without an error but it didn't solve the problem. I
then tried the Sys A: C: command. I know this works for Windows 9x, but I
doubt it should be used on Windows XP. Maybe I made the problem worst. The
computer will now boot off the hard drive, but it shows the Windows 98
splash screen and then goes to a C: prompt. I can see the files with the dir
command, but I don't know how to restore the Windows XP boot files. Is there
an XP equivalent to the Sys command? Any ideas would be appreciated.

Thanks,
Steve Smith
  Reply With Quote
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