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Windows 7: Can I restore 'System Reserved Partion' before reboot?

22 Sep 2014   #1

64 Bit Windows 7 Professional
Can I restore 'System Reserved Partion' before reboot?

I think I mistakenly did 'create partion primary' on System Reserved Partion using Diskpart.

I was trying to repair a USB stick by using Diskpart. I did a 'create partion primary' without doing a select disk first. I read that if a disk is not selected that Dskpart selects the active/in focus disk. So I think I wiped out the reserved partion because the 100mb partion now says 'Healthy EFI partition'.

I have not Rebooted my laptop yet. I am afraid that if I do I will not be able to boot into Windows
Is there a way to restore the 100mb partion to what it was?

What should I do to verify/fix this situation?


Attached Thumbnails
Can I restore 'System Reserved Partion' before reboot?-capture.png   Can I restore 'System Reserved Partion' before reboot?-capture2.png  
My System SpecsSystem Spec
23 Sep 2014   #2
Microsoft MVP


No you did not wipe System Reserved as you have an EFI install so instead have it's EFI Boot partition. The small partition shown next to it on PW output may need to be repaired if it is intended to be the second EFI partition which some installs are issued. But it may also be merely unallocated space that wasn't used.

To find this out reboot into Win7.

If it won't start then boot into the Win7 disk or Repair CD to run Startup Repair.

The 22gb disk looks like a 32gb SSD chip on an MSATA hard drive used to speed up the paging file and (hidden) Boot files. But it normally would not be showing because it would be RAID'ed with the hard drive using IRST. Did you unRAID or deselect IRST in BIOS to show that drive? More about that here: Install Windows on System with MSATA and ISRT
Install Windows on MSATA (SSD) Drive

It doesn't really need to be reinstalled to use the 32gb as intended IRST cache since no one has every reported that it makes the drive that much faster, and in fact we've helped several install the OS onto the chip to sample SSD speeds. Most bought an SSD drive as a result, though some are still running Win7 on a 32gb chip. It requires wiping first to free up all the space.
My System SpecsSystem Spec

 Can I restore 'System Reserved Partion' before reboot?

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