Can’t Delete System Partition of Windows 10, 8, 7
Geeks - If you are unable to delete a system partition on your Windows 10, 8, or 7 computer, there are a few possible reasons for this. First, it is important to note that the system partition is a critical part of your operating system and should not be deleted unless you are sure you know what you are doing. If you are attempting to delete the system partition because you want to reformat your drive or otherwise make changes to your system, there are other ways to do this without deleting the system partition.
One possible reason you may be unable to delete the system partition is because it is currently in use by the operating system. In this case, you will need to restart your computer in safe mode and then try deleting the partition again. To do this, follow these steps:
Restart your computer and press the "F8" key on your keyboard repeatedly while the computer is booting up. This will bring up the Advanced Boot Options menu.
Use the arrow keys on your keyboard to select "Safe Mode" from the menu and press "Enter" to boot into safe mode.
Once in safe mode, open the Disk Management utility by clicking on the Start menu, typing "disk management" into the search box, and then pressing "Enter".
Right-click on the system partition and select "Delete Volume" from the context menu.
Confirm that you want to delete the volume by clicking "Yes" in the pop-up window.
Another possible reason you may be unable to delete the system partition is because it is marked as a "system" or "boot" partition in your computer's BIOS or UEFI firmware settings. In this case, you will need to change the settings in your BIOS or UEFI firmware to allow you to delete the partition. This process will vary depending on your computer's make and model, so you will need to consult your computer's documentation or the manufacturer
