Windows 10: HDD missing partition.

I put my old Win 10 HDD in an external enclosure. When attached to my windows 11 computer it shows only one 931GB partition instead of a 100GB primary partition and an 800GB secondary partition. This is both in Disk Management app and windows explorer where I can't see any of my secondary partition files. Below is a snapshot from Disk Management. Disk 1 is my problem disk. Please help.

:)

 

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

 

Unresponsive HDD Partition.

I somehow managed to format the partition & its now unallocated space. Now, I cant create a new partition neither I can allocated that free space to other Partition. Can you suggest a way to repair that space in HDD?

-Thanks

 

Windows 10 OS cloning Failed due to Bad Sectors on HDD Failure. Now I can't boot on both the original and new HDD

Thanks Munkhbayar B.,

I have tried steps 1 and 2 for the Old HDD, but nothing has changed.

For step 1, it says, "The type of the file system is RAW. CHKDSK is not available for RAW drives".