Windows 10: Cannot Reinstall Windows on GPT Partition

I need to reinstall Windows 10 on a partitioned hard drive. The hard drive has 8 partitions - I only care about the 1 partition that has my data on and I don't want to lose it during the install. Other partitions are where I had Windows originally installed, system recovery, MBR reserved and some other randoms.

I tried to select the partition which currently has my corrupted Windows on but cannot install there because it is in GPT format.

I am trying to install from the Windows media creation tool which has been burned to a USB stick in NTFS format.

How can I reinstall without losing my GPT partition with data on it?

:)

 

clone MBR HD to bootable GPT partition?

Hi,

1. You cannot convert mbr to gpt without data loss. otherwise, you can follow directions here:

FROM WINDOWS RECOVERY CONSOLE:

To change a master boot record disk into a GUID partition table disk using a command line

• 
  Back up or move the data on the basic master boot record (MBR) disk you want to convert into a GUID partition table (GPT) disk.
  
• 
  Open an elevated command prompt (right-click Command Prompt, and then click Run as Administrator) and type diskpart. If the disk does not contain any partitions or volumes, skip to step 6.
  
• 
  At the DISKPART prompt, type list disk. Make note of the disk number you want to convert.
  
• 
  At the DISKPART prompt, type select disk <disknumber>.
  
• 
  At the DISKPART prompt, type clean.
  

2. I'd suggest converting your vista drive to a virtual machine, load that up on your windows 10 system and use a program like virtualbox to run it.

 

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.

https://blog.bramp.net/post/2010/08/30/converting-mbr-to-gpt-without-deleting-your-partitions/

 

Help! GTP partitions not detected.

I was really dumb.
Windows asked me to initialize the disk... I didn't see GPT on the list so I selected MBR. I realize now that GUID = GPT. *Frown *Frown *Frown ... did this erase my partitions?