Windows 10: I Misused DiskPart and messed up my volumes and my OS wont even boot anymore

Windows can’t find my boot OS anymore because I messed around with the Diskpart tool and unassigned my partition/volumes. I can’t even install a fresh copy of windows using the bootable ISO USB as it gives me an error. Can you please help:

:)

 

Diskpart not locating volume with windows installed on it

Hello,

I have a desktop that is currently stuck in a Repair loop, and goes to BSOD. One thing I found is when I try to rebuild BCD it says Total identified Windows installations: 0.

Currently it appears Windows is installed on the X:\ drive of this computer, but when I check diskpart and list volumes it doesn't show X:\ and none of the volumes displayed have a system partition in them.

If anyone has any suggestions I would really appreciate it!

 

MBR of RAID volume overwritten, OS fails to boot. Help.

I've screwed up, big time.

My machine has a RAID 0 of two 500GB drives. The resulting volume stores my Windows XP installation. Its contents are vital. I installed an additional 80GB IDE HDD to install Kubuntu. During Kubuntu's setup, those 500GB drives were displayed as is, and not as the resulting volume. I was able to make sure the right drive (hdc, that 80 GB HDD) was partitioned and formatted, but the grand screwup came where in the "finalise" step, you have to specify where the boot-loader has to be installed. This option was hidden in a seperate dialog that comes up on clicking an "advanced" button somewhere. Well...the installer wrote the boot loader to (hda), the first member of the RAID 0 volume, when the installer doesn't recognise the volume itself and only its member disks.

Windows doesn't boot, neither does Kubuntu (shows Grub error 15). I need a way to recover data from the volume. I'm hoping the volume's contents are intact, though its MBR is gone. How do I boot Windows?

I can't use a WinXP boot floppy made from another system, since the boot floppy won't recognise a RAID volume. Should I boot the machine with the Windows XP install CD + AHCI driver floppy and install the OS without formatting the volume, so at least I could safely move my files to another drive even if the resulting OS is unstable? Ideas please.

 

Use DiskPart to Create the OS Partition on Clean Install.

I have a Laptop HDD [ my preferred option as opposed to an SSD on this Laptop ] arriving on Friday and I want to use DiskPart to Setup the size of the OS Partition. The main reason I want to do it this way is because DiskPart can create an exact 30 GB Partition [ my OCD ] for example. Here are the steps that I tried the other day which did NOT work . . .

• Boot from the install USB.
• On the Windows Installation Screen press Shift + F10.
• diskpart
• list disk
• select disk 0
• clean
• create partition primary size=30000
• exit
• exit

I intend to leave assign AND format fs=ntfs for Windows to perform as normal during the installation.

Thanks.