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Windows 7: Accidentally formatted UEFI System Partition, now Windows won't boot.

19 Jul 2013   #1
epic93

Windows 7 Home Premium 64 bit
 
 
Accidentally formatted UEFI System Partition, now Windows won't boot.

Is there any way I can restore what was in that partition?


My System SpecsSystem Spec
.
19 Jul 2013   #2
theog

Microsoft Community Contributor Award Recipient

ME/XP/Vista/Win7
 
 

information   Information
We always assume you have made your Recovery Disks using the OEM manufacturer's Recovery Media Creator app the first day you had your new PC.

& made the Startup Repair CD.
startup repair disc-create


Did you make the OEM manufacturer's Recovery Disks?

You can Order ASUS recovery disks from here:
http://us.estore.asus.com/index.php?..._detail&p=2860


Using the Start up disk.

Try doing a start up repair:

Startup Repair
Note: You may need to do start up repair 3 to 4 times.
Startup Repair - Run 3 Separate Times
My System SpecsSystem Spec
19 Jul 2013   #3
epic93

Windows 7 Home Premium 64 bit
 
 

No, but I'm downloading a copy of Windows 7 Home Premium 64 from digitalriver so I can try using its boot repair option. Is there a way to put that ISO on a USB drive so I can UEFI boot the installation/recovery?
My System SpecsSystem Spec
.

19 Jul 2013   #4
theog

Microsoft Community Contributor Award Recipient

ME/XP/Vista/Win7
 
 

information   Information
Boot up using the Startup Repair CD or Windows 7 DVD. (not the OEM manufacturer's Recovery Disk) If you have a Netbook, you will need a CD/DVD drive.
NOTE: Make sure no USB drives are plugged in.
Do not use a USB Pendrive for Startup Repair.
startup repair disc-create


Windows Vista or Windows 7 no longer starts, and the Startup Repair tool does not fix the problem

You need to boot the windows 7 x64 CD/DVD in UEFI mode.

-windows-8-downgrade-006-sb-posting.png


My System SpecsSystem Spec
19 Jul 2013   #5
epic93

Windows 7 Home Premium 64 bit
 
 

I don't have the windows DVD.

Can I download and burn one from here?
My System SpecsSystem Spec
19 Jul 2013   #6
theog

Microsoft Community Contributor Award Recipient

ME/XP/Vista/Win7
 
 

Quote   Quote: Originally Posted by epic93 View Post
No, but I'm downloading a copy of Windows 7 Home Premium 64 from digitalriver so I can try using its boot repair option. Is there a way to put that ISO on a USB drive so I can UEFI boot the installation/recovery?
Quote   Quote: Originally Posted by epic93 View Post
I don't have the windows DVD.

Can I download and burn one from here?

Yes, you can.
My System SpecsSystem Spec
19 Jul 2013   #7
epic93

Windows 7 Home Premium 64 bit
 
 

Which one should I download?
My System SpecsSystem Spec
19 Jul 2013   #8
gregrocker

 

I would boot the flash stick installer or DVD created from Win7 Home Premium x64 SP1 English Official ISO download to try running Startup Repair.

Recreate the partition NTFS Primary first to see if the repair utility will rewrite the UEFI boot partition. Let us know how this works.

It's not correct that Win7 will not repair from a flash stick. I've done it many times.

If necessary to reinstall then follow the steps in UEFI (Unified Extensible Firmware Interface) - Install Windows 7 with - Windows 7 Forums.

You can access your files to copy them out using Copy & Paste - in Windows Recovery Console .

In addition look over these steps for getting a perfect Clean Reinstall - Factory OEM Windows 7 which compile everything that must be backed up first and the tools and methods which work best to get and keepa perfect install.
My System SpecsSystem Spec
19 Jul 2013   #9
epic93

Windows 7 Home Premium 64 bit
 
 

I'm having trouble downloading it from that site, are there any mirrors or torrents (of THAT EXACT ISO, not pirated/cracked copy)?
My System SpecsSystem Spec
19 Jul 2013   #10
gregrocker

 

No. What is the problem?

Try another browser.
My System SpecsSystem Spec
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 Accidentally formatted UEFI System Partition, now Windows won't boot.




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