Newly formatted secondary harddrive shows 128mb unformatted partition

Folks,

I'm running a primary SSD with the W7/64. I installed with ONLY that SSD in the computer. (I've learned.)

Then, after a few reboots and updates, I installed a 1tb WD hard drive. It was a new OEM drive. I did a long format, then a chkdsk.

After a few reboots (and reading some OUTSTANDING tutorials on this site), I moved my USERS folders over to the harddrive. ("D" drive.)

Upon opening Macrium Reflect to perform a backup, I see that my hard drive (D) has a 128MB partition, unformatted, but full. (That does not show up in W7's disk management.)

As expected, my "C" drive, the SSD, has a 100MB System Reserved partition. (As I want.)

What is this 128MB unformatted partition used for? (NTFS file system.) Is this where the file system stores the access table?

Thanks,
Ken

Did you format your 1TB WD drive to GPT? If so it will create a 128MB reserved partition called MSR MicroSoft Reserved. See my post External HDD suddenly requires formatting, read as RAW instead of ntfs

For drives less than 2TB, I would still say it would be better to go with the known MBR format rather than GPT if that option exists.

jumanji,

You are correct. I formatted it as GPT.

I'll look at your post, linked above.

Thank you.

Ken