Windows 10: Windows Installation: Cannot Format/Delete Partition

Justin Andrew Gonzales · Jul 21, 2022

I wanted to reinstall windows 10 because my pc become unusable like, "System Service Exception BSOD " Too many errors on event viewer. And I got this problem that I cannot explain. english is not my first language First thing I do when I notice this problem is when I uninstalled a program, delete some files, and I restart my pc, the program I uninstalled and the files I deleted came back to my pc after restarting.I tried Chkdsk and got too many errors so I tried "chkdsk /r /f" and it just finished so fast, and looks like it did not do something. Sfc /scannow did not work as well. Same to D

:)

FordGT90Concept · Jul 21, 2022

Installing Windows Vista/7 on a GUID Partition Table

I've never tried multiple partitions so this is a shot in the dark...

At step #10, I would try setting the size parameter (it is in mebibytes) to how large you want the partition windows is installed on to be, then go ahead and install windows. This will leave the rest of the drive raw instead of consuming it into the OS partition (C drive). Once you successfully boot into Windows, you should be able to use Computer Management -> Disk Management to create partitions in the raw space.

If you really wanted to do it with diskpart before Windows is installed, you basically repeat the following lines making sure to specify a size if you don't want it to consume all remaining space:

create partition primary size=size in mebibytes here

format quick fs=ntfs label="appropriate name here"

assign letter=C thru Z here

Obviously, you can use quick formatting or leave it out for full format. Leave off the size parameter when you reach the final partition that should consume all the remaining space. Also remember that the order you do this in goes from the outside of the disk (where it is fastest) to the inside of the disk (where it is slowest). Because of this, it is recommended to put EFI (e.g. size=300), then MSR (e.g. size=300), then Windows (e.g. size=30000), then Applications (e.g. size=70000), then Storage (e.g. no size parameter).

If I'm right, the above example would look like this:

diskpart

list disk

select disk <id>

online disk

attributes disk clear readonly

clean

convert gpt

create partition efi size=300

create partition msr size=300

create partition primary size=30000

format fs=ntfs label="Windows"

assign letter=C

create partition primary size=70000

format fs=ntfs label="Applications"

assign letter=D

create partition primary

format fs=ntfs label="Storage"

assign letter=E

exit

Avocado · Jul 21, 2022

Delete or format partition during clean install windows

Step 1:

If the entire hard drive not show as unallocated space, then delete all partitions on the hard drive until it's unallocated (see screenshot below). Select a partition and click on the "Delete" option for each partition.

Step 2:

- Option 1:

Click on the "Next" button. The installation of Windows 10 will begin. All the required partitions are created automatically during the install.

- Option 2:

Select the "New" and "Apply" buttons.

Click on the "Next" button. The installation of Windows 10 will begin.

For more info about UEFI mode and Legacy BIOS mode, look at post #5 in this thread: Cant install Windows 10 because of GPT partition error message