[SOLVED] Upgraded my old PC, Windows 10 won't install on old drive

[adison024]

EDIT: SOLVED AFTER TWAEKING TWEAKING BIOS.!

Greetings,

I upgraded my PC with Gigabyte B450 Elite and Ryzen 5 3600, and few other parts. Kept only the old hard drive, WD Purple 1 TB.

The hard drive has 4 partitions, I had taken a backup of C drive as I knew Windows will be installed there but did not take backup of other drives. While installation I got the error "Windows cannot be installed to this disk. The selected disk has an MBR partition table. On EFI system, Windows can only be installed to GPT disks". I thought (my mistake here) this would be solved by formatting that partition. This did not solve anything and the OS got wiped from the internal drive.

So what can I do right now so as to install Windows 10 without loosing all the data of other drives.

If formatting the whole drive is the only option, how can i take the backup from the drive without it having an OS installed?

I have,

• A laptop that has windows installed, that i can use for files transfer.
• 2 external hard disks 2TB and 500 GB
• 2 USB Flash Drives, one with windows setup, another one of 16 GB free for use.

Can I use above things to take a backup of my internal drive?

 

[Lutfij]

You can use a tool like Recuva to recover data but your mileage can and will vary.

Also mind stating what your AFTER TWAEKING BIOS was?

 

[adison024]

Boot order was

1. UEFI Sandisk Cruze Flash Drive
2. Hard Disk
3. Sandisk Cruze Flash Drive

I disabled "UEFI Flash Drive" and gave priority to flash drive. After that it allowed me to install windows on partition.