"Windows cannot delete the active system partition"

Windows cannot delete the active system partition

Sounds like you are trying to delete or edit a partition that had/has a Windows installation on it, Trying to install a new window in that partition? (you can just install over it during the install process) Trying to use that partition for something else like as data storage? Well then you will need remove the system before you can re-format the partition for use.

Try this:

• Make sure the account you are logged into Windows with is an Admin one
• Windows + R
• msconfig
• Enter
• Boot > Delete the OS or windows you do not want any more
• Apply > Restart

Now go right-click My computer > Manage > disk Management > Try to re-format the partition, shrink it, delete it etc.

OK, so that doesn't work. This website : http://social.technet.microsoft.com/Forums/en-US/itprovistasetup/thread/af3a1e24-214f-4e0e-b917-9530a27534de


Deactivate / Inactive an active partition:

Suggests doing things in command prompt to deactivate the partition you want to reformat. After doing a Google search I found out that only 1 partition can be active, so instead of doing the command prompt stuff, I tried this emthod and it worked:

1. Right-click My computer > Manage > Disk Management
2. Select the partition you are now wanting to use > Right-Click > Mark partition as Active
3. The other partition should now be inactive and ready for you to reformat, etc.

Hope this works for you! =]