Solved! Just disabled a function in the BIOS called "SATA IDE combined mode" and it successfully installed Windows 10!

@alphanumeric No, I always select in the BIOS to install from the DVD / USB. In the partitions screen, I just do the whole disk unallocated and try to install.

Anyways, I tried switching the hard...

Adalwar I was able to delete both partitions with GParted. I can now freely edit partitions. NavyLCDR alphanumeric Tried installing on unallocated space, new error - 0x80070570

Adalwar The first time I tried installing with Diskpart, it popped up with this error:

Clean is not allowed on the disk containing the current boot, system, pagefile, crashdump or hibernation...

No, the only problem was getting rid of that Windows 8.1 system partition. I also remember about how this hard drive was in another system and how it BSOD the Windows often with ntfs.sys being the...

I created (and downloaded) the ISO with the Media Creation Tool. The image is not corrupted, because I have a test rig and with the flash drive/DVD it succesfully installed Windows 10 without any...

As I said, the drive was formatted in GParted, because I could not delete the Windows 8.1 partition on Windows 10 setup. Everything was grayed out in the hard drive options (like format, delete...

I think you misunderstood the computer specs. The computer that I am installing Windows is in the first post, not the computer in my system specs. The hard drive is 500 GB SATA2. The partitions are...

Hi,

The computer originally had Windows 8.1 64-bit. I was re-installing Windows 10 64-bit with my flash drive, but I couldn't delete the Windows 8.1 partition, because all of the options were...