how to reinitialize 3tb drive as GPT

[pectin]

All options were grey off... I must have accidentally initialize it as basic disks. I cannot see the 3tb as 3tb but as 2tb only... I did it under disc management..in win7 64 bit with sp1.

 

[razel]

I hate it when Disk Management does that. Unless you have another disk partition utility then you'll need to clear the partition table and MBR.

Close Disk Management and start a command prompt and run diskpart. Type 'list disk' to get the drive number. Then 'select disk #' where # is the drive number. Type 'list disk' again to ensure you chose the right drive. Then type 'clean'. That will clear the beginning and end of your disk which includes the MBR and partition table. Then close out and rerun disk management.

 

[zsleaf]

Greetings from the future.

Created an account just to tell you thank you, this worked like a charm. This should be the top result when you google "reinitialize hard drive".

 

[sam042955]

I also created an account to thank you!

(It's so simple, yet so effective. Re-initializing 101!)

 

[BarkingGhostar]

BTW, razel's instructions work great. I've done this many times. Keep in mind, though, that if this were an external HDD (e.g. MyBook, etc.) it will require a better solution to use the WDC s/w.

Also keep in mind that you can run the 'all' option with clean and not even finish the process, but will smack the endpoints and let you move forward as razel describes.

 

[akhil00]

Just had to enter and say thanks. Just what I was looking for and this Place was the only one on which I could find an easy answer! Thanks!

 

[Imxsive]

Thanks so much for this solution and clear instructions - It worked perfectly.