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Can't boot windows 7


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#1 JW0391

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Posted 10 November 2017 - 07:29 PM

Hey guys this is my first post here. I was running driver booster earlier and advanced system care (new install) at the same time by mistake. It seems advanced system care uninstalled my graphics driver as my resolution went from normal to large. I used driver booster to scan for my driver. Installed it and rebooted. My pc updated as I went for my supper. Came back to a windows screen saying cleaning up. Booted up just my desktop image and nothing else. Now it won't boot at all, even in safe mode or anything. Repair won't fix automatically. I have no restore points or anything. Please help guys I'm lost! (Posting before bed so will be a delay in replying)

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#2 FreeBooter

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Posted 11 November 2017 - 01:27 PM

Windows Vista/ 7/8/8.1/10 keep a regular backup of the registry handy in case you need to overwrite a corrupted registry. By default, the RegIdleBackup task runs every 10 days, so that’s as far back as you would lose if you replaced the current registry with the automatically backed-up files. You can find the backed-up registry files in \Windows\System32\config\RegBack folder.


Please boot your computer with Windows Setup Media and from Windows Recovery Environment start the Command Prompt.

Please type below command into Command Prompt and press Enter key.

 Dir C:\Windows\System32\config\RegBack

Above command will list files stored within RegBack folder and there file size, make sure files are not zero size if they are do not follow below instructions.

akBT8zC.png

Please replace partition letter C: with Windows installed partition letter. When computer boots into Windows Recovery Environment (WinRE) environment the drive letter assign to Windows partition may not be C: drive letter because Windows 7, 8 , 8.1 and 10 creates a separate system partition when it's installed from scratch. The system partition contains boot files WinRE assigns the system partition the C: drive letter and the Windows installed partition will be assign any other drive letter usually D: drive letter is assign to Windows installed partition. The Bcdedit /enum | find "osdevice" command can be use to find out the drive letter of the Windows installed partition the output of the Bcdedit command is similar to this osdevice partition=D:. The drive letter after partition= is the drive letter of the Windows partition.

Please type below commands into Command Prompt and for each command you have typed press Enter key.


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#3 JW0391

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Posted 11 November 2017 - 01:48 PM

Thanks for replying. I've done the command Dir D:\Windows\System32\config\RegBack. Now what?

Edited by JW0391, 11 November 2017 - 01:49 PM.


#4 FreeBooter

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Posted 11 November 2017 - 02:03 PM

Sorry for some reason my instructions not complete i have posted new instructions. If the registry hive files sizes not zero size then you can replace corrupted registry hive files.


Windows Vista/ 7/8/8.1/10 keep a regular backup of the registry handy in case you need to overwrite a corrupted registry. By default, the RegIdleBackup task runs every 10 days, so that’s as far back as you would lose if you replaced the current registry with the automatically backed-up files. You can find the backed-up registry files in \Windows\System32\config\RegBack folder.


Please boot your computer with Windows Setup Media and from Windows Recovery Environment start the Command Prompt.

Please type below command into Command Prompt and press Enter key.

 Dir C:\Windows\System32\config\RegBack

Above command will list files stored within RegBack folder and there file size, make sure files are not zero size if they are do not follow below instructions.

akBT8zC.png

Please replace partition letter C: with Windows installed partition letter. When computer boots into Windows Recovery Environment (WinRE) environment the drive letter assign to Windows partition may not be C: drive letter because Windows 7, 8 , 8.1 and 10 creates a separate system partition when it's installed from scratch. The system partition contains boot files WinRE assigns the system partition the C: drive letter and the Windows installed partition will be assign any other drive letter usually D: drive letter is assign to Windows installed partition. The Bcdedit /enum | find "osdevice" command can be use to find out the drive letter of the Windows installed partition the output of the Bcdedit command is similar to this osdevice partition=D:. The drive letter after partition= is the drive letter of the Windows partition.

Please type below commands into Command Prompt and for each command you have typed press Enter key.



Ren  C:\windows\system32\config\SAM         SAM.BAK

Ren  C:\windows\system32\config\SYSTEM      SYSTEM.BAK

Ren  C:\windows\system32\config\SECURITY    SECURITY.BAK

Ren  C:\windows\system32\config\DEFAULT     DEFAULT.BAK

Ren  C:\windows\system32\config\SOFTWARE    SOFTWARE.BAK

 

Copy  C:\Windows\System32\config\RegBack\SAM         C:\windows\system32\config

Copy  C:\Windows\System32\config\RegBack\SYSTEM      C:\windows\system32\config

Copy  C:\Windows\System32\config\RegBack\SECURITY    C:\windows\system32\config

Copy  C:\Windows\System32\config\RegBack\DEFAULT     C:\windows\system32\config

Copy  C:\Windows\System32\config\RegBack\SOFTWARE    C:\windows\system32\config

This procedure assumes that Windows Vista/7/8/8.1/10 is installed to the C:\ partition. Make sure to replace C:\ drive letter to the appropriate Windows OS installed partition drive letter if it is a different location.


Above commands renames the registry files at their existing location, and then copies the registry files from the RegBack folder to the C:\Windows\System32\Config folder.


Share your knowledge. Its a way to achieve immortality.
- Dalai Lama

 

 





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