Originally Posted by iloqutiss1
Thank you homeUser! WinMFS did the trick. Xunil76 was spot on with his warning. You can corrupt the boot sector of the tivo drive if you boot into windows with your drive connected. OP please add that fact to your warning section along with a link to WinMFS just in case. It would also be helpful to update your link to the correct Western Digital program to make a bootable cd. Data Lifeguard for Dos is the one I should have used instead of the Windows version but the guide is not clear on this. Anyway despite my difficulties along the way I do appreciate this informative guide as it saved me from wasting $50 on a new drive that isn't the fix I need. Thank you.
Actually, it depends on which version of which version of Windows.
Versions before XP and early versions of XP apparently would see what appeared to them like a blank, never before used drive because there was no IBM/DOS style Master Boot Record and no code was included in them to allow them to recognize the "boot page" used on TiVo drives or the Apple Partition Map style of partitioning, so they'd very helpfully set up said drive with an MBR in anticipation of the PC user going on to set up partitions on the supposedly empty drive.
Did I mention that TiVo boot pages and MBRs use the same part of the drive?
So Windows would write the MBR and that overwrote the boot page.
By the time of XP service pack 3, Microsoft had fixed this problem to the extent that just booting up with a TiVo drive attached doesn't trigger the automatic writing of an MBR.
However, I'd recommend not opening Disk Management in XP while the TiVo drive is connected, just to be on the safe side.
And, as mentioned, WinMFS can fix the boot page on Series 1, 2, and 3 TiVo drives.
Not sure about Series 4 (Premieres and such).
You certainly can't use WinMFS to copy or expand a Series 4 drive--TiVo changed some stuff on them and that was after the most recent verison of WinMFS was written.