Computer won't boot on Win8 UEFI restore

Hi @Nihilism,

Sorry for delay. There is no need to perform clean restore anymore.
The issue is definitely in EFI boot setting.
Somehow during several attempts to fix boot, it's now totally corrupted.
But you can fix it.

Is it possible to create Windows recovery CD (same version preferable or x64-bit at least) ? Windows Installation CD also will be OK.

We need to boot x64 Windows CD in UEFI mode. Then run command prompt (use Shift+F10 at first screen in Windows installation CD or advanced recovery tools in recovery CD)

1. Next we need to find EFI partition.

Type 'diskpart', press enter. It will run command-line utility.
'list disk' - will return list of available drives. Fins the required by size or vendor.
select it : 'select disk X' where X is disk number.
view volumes on selected disk : 'detail disk'
it will return HDD info and list of volumes with drive letters and FS.
You should remember drive letters for 2 volumes:
> FAT32 Hidden (small volume ~100MB) - it's our EFI partition
> NTFS big partition with your Windows installation



If drive letter for EFI partition is not specified. do the following:
'select volume Y' replace Y with volume number for EFI partition
'assign letter = S:' now EFI partition is S:

Let's assume EFI partition is S: and system partition is C:
Exit diskpart by 'exit'

2. navigate to BCD store in EFI partition:
S:
cd S:\EFI\Microsoft\Boot

3. Create new BCD store

3.1. first of all, let's check that bcdedit uses correct BCD store.
Run 'bcdedit' w/o parameters.
It will return general information. Check if {bootmgr} entry has partition=S:
Otherwise, please add '/store BCD' to each BCD command (example bcdedit /store BCD /enum all )



3.2. rename current store to create new one
'ren bcd bcd.old'

3.3. create new BCD store
type: 'bootrec /rebuildbcd'
it should ask to add found Windows installation, type 'y' to accept.



type 'bcdedit' to check if {bootmanager} is assigned to S: and Windows boot loader {current} is assigned to C: (I mean corresponding drive letters in your configuration.)

It should restore basic boot settings.

If it works, I can help you to configure all required boot setting.

 

Thank you very much for your efforts Mech_An. I had tried playing with the diskpart command line before but hadn't had any success. I have done a fresh Windows installation and reinstalled all my programs and data on Friday and Saturday so I am functioning correctly now.

Thank you again.
Peter

 

Yeah, you were right.
http://www.paragon-software.com/newsletter/2013/20131115_HDM14Suite_free_upg.html
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