Seagate 3TB MBR to GPT
Ok, so I know next to nothing about computers. A friend helped me build one but the hard drive is reading "disk read error" so i figured it was time to buy a new HDD. I was already full on the last drive so 3TB seemed like a good idea.
The HDD is brand new and seems to be already partitioned into "Disk 0 Partition 1" and "Disk 0 Unallocated space" x2. Windows 7 refuses to be installed on them saying:
Windows cannot be installed to this disk. The selected disk has an MBR partition table. On EFI systems, Windows can only be installed to GPT disks.
I didnt really understand that but i did some research and apparently you can convert a disk from MBR to GPT BUT it only works if the disk is not partitioned. I attempted to format it BUT it said to me: The partition might contain recovery files, system files, or important software from your computer manufacturer. If you format the partition, any data stored on it will be lost.
I understand this so my question is, what content/info does the seagate have on it?
How do I completely wipe the hard disk?
How do I safely convert from MBR to GPT?
I really appreciate your help.
Also, I'm no computer wizz but I can read and I am willing to learn. Simple, easy to follow text is prefered.