Windows 10: Accidentally deleted GPT partition on hard drive

I have an SSD and a HD, I have windows installed on the SSD and I use the HD to store extra data. I accidentally deleted the GPT partition of my hard drive doesn't affect my windows however windows can't detect the hard drive now while trying to install Ubuntu on my HD for a dual boot. Is there any way that I can reinstate the GPT partition for the hard drive without having to pay for 3rd party software? Any help would greatly be appreciated as I am currently unable to access any data from my hard drive.

:)

 

W7 Hard drive partition issue

to get rid of that 100 meg windows partition that setup creates for you on a new install on a blank hdd:

- press shift+f10 when on the partition management screen in setup <-- this opens a command prompt
- diskpart <-- start the windows command line partition management tool
- list disk <--- list the installed hdds in this computer for the next step
- select disk 0 <- might have to replace 0 with the number of the correct disk
- clean <-- this will erase all data on the disk you selected one step up- dont use the wrong disk!
- create partition primary <- creates a primary partition taking up all space on the drive, adjust the command if necessary
- exit, exit to exit diskpart and the command prompt
- click refresh in partition manager and select your newly created partition and install to that

 

GPT table issue

so i accidentally wrote a MSDOS partition table over the top of a large hard drive full of valuable data, it had a GPT table on it before hand. anyone know how to fix that???

PLEASE???

 

Convert only one partition on the disk from MBR to GPT

Follow the steps listed here on using GPTgen. He also lists how to create and restore backups.

Converting MBR to GPT without deleting your partitions