I'm troubleshooting a computer for a friend. The computer is running Windows 98 and won't boot past the Windows startup page. The computer can't be booted via safe mode either. I strongly suspect it's a MBR problem, as scandisk within the Windows set-up exported that there was a data error in FAT sector zero.
I'm planning on booting from a Windows boot disk and using fdisk /mbr.
However, I have some concerns, as I'm not 100% certain there are no drive overlays. The data on this computer is extremely important for my friend, as they have their only copy of their master's thesis on there, along with many family photos (Yes, pretty insane to not have a backup, but a little late for them now). What should I watch out for with MBR to ensure that none of the data, or the partitions are destroyed?
I'm thinking of making the drive a slave on another Win 98 machine, so I can transfer the files prior to attempting the fix. I've never done this before with a drive that is non-bootable and has an operating system already installed on it. Any issues or special steps which I should be aware of before hooking up the drive (aside from ensuring the jumpers are correct)?