Windows 10: No MSR partition after converting from MBR to GPT a while back?

If a computer does not have MSR and or has reduced space in the EFI it will likely have problems upgrading.
Upgrades come approximately every 6 months so there is a significant period of time in which there are no problems detected.
The OP could use the computer without upgrades too.
So to have a smooth working computer the MSR and EFI are needed to have a certain amount of free space to perform the upgrades.
If an OP chooses to work without these they can as long as they have a backup image.
With a backup image they can clean install the new version and build of windows and restore the image and have the upgrade.

 

Hey, I am definitely interested in this!

Basically I have two issues right now:
1. I am missing the MSR partition entirely (likely due to fact that I did an MBR to GPT conversion via DiskPart after Windows installation).
2. The partitions are out of order (current order is C, recovery 1, D, EFI, recovery 2) and I don't know how to rearrange them. I realized today this is a big problem when I formatted the second recovery partition but couldn't give the new space to C or D because the EFI partition is in the way.

Any suggestions on approaching these issues?

 

Yes, we will rebuild the whole thing.

Here's the steps:

• Copy this code and save it in a file called: EFI.txt to an external HD.
  IMPORTANT: The code uses Disk 0 on first line, make sure you use the same disk #, if not, change it.
  select disk 0
  clean
  convert GPT
  create partition primary size=499
  format quick fs=ntfs
  set id=DE94BBA4-06D1-4D40-A16A-BFD50179D6AC override
  gpt attributes=0x8000000000000001
  create partition primary size=99
  format quick fs=FAT32
  set id=C12A7328-F81F-11D2-BA4B-00A0C93EC93B override
  create par MSR size=16
  list par
  exit
• Download Macrium Rescue disk ISO.: MacRescue.iso - Google Drive
  build a bootable USB, use: Rufus - Create bootable USB drives the easy way
• Boot up the PC with the USB. NOTE: there are 2 boot up modes: USB-XXX and UEFI-USB-XXX
  Since your Windows is GPT, Must use: UEFI-USB-XXX
• Make a complete backup image of your current Windows Disk 0 including D: partition to the external HD.
  (Click on image this disk)
  IMPORTANT: Make sure you verify the image
• Next, Click on the command icon on the bottom left to open the command windows then type:
  diskpart /s Drive:\EFI.txt where Drive is the the drive letter of the external HD.
  This will create the 1st 3 partitions: 500MB Recovery, 100MB EFI System, 16MB MSR
• Go back to Macrium Windows, click on Backup tab, click on Refresh
• Next, click on Restore Tab and select the backup image created in step 4
  Select the destination disk (Disk 0)
• Drag the Cdrive from top row and drop to the empty space next to 16MB MSR, then drag D: and drop next to C:
  Click next->Finish
• Once restore completed. Click on "Fix Windows Boot problem". Follow the screen to rebuild the BCD.
• Reboot

You should have: 499 MB Recovery, 99 EFI System, 16MB MSR and C drive + Drive (16MB MSR is hidden from Disk Management)
Here's a screen shot without Drive D since I only have Windows partitions on disk 0




At this point your Windows Recovery Environment is broken, we will fix that next.

If you have any question. Please ask !!!

 

I find it hilarious to think that Windows update/upgrade will fail because there is not a 16MB empty partition on the hard drive. ROFLMAO!

Especially when there is no such partition possible on an MBR partitioned drive.

 

Dude, this is perfect, thanks so much for the guide! It'll be a couple weeks before I can try it out, but I'll def update here once I do it (as long as the computer still boots).