Whenever i try to install windows 2000 server, at the time of choosing partition, the blue screen shows my all partitions as - "unformatted or damaged", without any drive letter.
When i choose the desired partition, it begins formatting my current partition (c: vista), so ultimately i have to shut down my pc, and cannot proceed with my installation.

Please help me.....More info on the drive and how you set up the partitions and what sizes etc. will help...

Meantime i would at least run chkdsk /r on all your partitions to start...i m attaching screenshot of my drives........

[Saving space - attachment deleted by admin]What a mess...
What is the Primary BOOTABLE partition and it's OS ? ?

What partition were you attempting to installWin2Server onto ? ?

If that were my system and i wanted it to function correctly i would:
1) Determine what OS's i wanted to install
2) Set up a partition STRATEGY to MAKE that a workable solution
3) Start by installing the oldest OS first and continue from there
4 Consider adding another drive to the system to handle it's needs.
5) Format and start from scratch...


I'm not sure why there is a blue overlay in your image supplied but it MAKES it impossible to see all the partitions involved.