i have 2 OS!how can i delete one of the OS?without affecting another OS?

Answer 1

IF you meen that you see the option to boot to a different OS at startup and this is a windows product than this will help. First open My computer, then click TOOLS, FOLDER OPTIONS, then the VIEW tab, you want to check SHOW HIDDEN FILES and then uncheck HIDE SYSTEM FILES. Be carefull in here!! you want to erase the one line in here that is doubled. should look something like this "multi(0)disk(0)rdisk(0)partition(2)\WINDOWS="Microsoft Windows XP Professional" /fastdetect"
If you have two lines like this just erase one then save when you exit this file. remember to put the checkboxes back where you found them.

Answer 2

Regardless of which OS is loaded on which partition, both volumes are available for mounting from each OS. It doesn't matter if it's one drive with multiple partitions or different physical drives.

So - you dont need to mess with FDISK ! ! !

Simply boot from your desired OS. Copy any files you want to save from the drive of the 'bad' OS to your 'good' drive (C?) and unconditional format the 'bad' drive.

Finally, you need to tell your boot loader (LILO?) that you no longer have multiple OS's and to only boot from the single drive.

You will end up with two drives (C and D for example) with nothing on one. At this point you can get something like partition magic to merge everything into a single larger drive.

Answer 3

Delete the partition on which the OS is installed (the one you want to remove). Everything you had there will be lost! Then configure the boot loader (deleting a partition will remove the OS but it won't remove it from the boot sequence).

Answer 4

2 hard drives or one HD? If you have windows, make a boot disk and format the drive. Or you CAN use fdisk from the command prompt. I would suggest using fdisk.

Answer 5

wich os's do you have?