Top Tip: Help! Bad partition table!

Readers make observations, warnings and suggestions on various ways to repair a bad paritition table. But you may not welcome some of the options. Or the time it will take.

Tips used for Top Tips come from the ExtremeTech forum and are written by our community.

Question from THEWIZ
"How can you repair a bad patitition table ,formating hard drive will not do it .Use IBM disk it will not erase the boot paratition . Is there anyway to repair it ? "

Answer from waynesworld
"If your sure your hard drive is good and dont mind losing whatevers on the disk, If Anything worth saving (?) I would fdisk the whole Tomata and start from scratch. Remember that with multiple OS booting & windows you have to load them in order of Antiquity. The oldest one first; 98 then 2K then XP.

The only way I know how to truly check a Hard Drive and mark bad sectors is with low level formatting tools. Your drives maker may have a LLF floppy or CD image you can download and copy. If your drive is 10 GBs or more, be prepared for a LONNNNGGG night! LLF takes a while.

fdisk utilities and various set up images can be gotten here to put on Z floppies & you can try to fixmbr but sounds like a job for fdisk."

Answer from Gill_Boyd
"Without knowing your O/S - Old DOS way = fdisk /mbr

OR... Install the HD in question slaved to another boot HD, scan it, clean it and then fdisk it!"

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