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Microsoft Windows Tips And Tricks!


Repair Windows xp Vista-7 OS that will not boot or has lsass.exe error

Here is how to fix it:

1) Remove the drive and use it as an external drive in another system. I'll call it drive X:.
2) On that other computer, create the following folders on X:


3) start windows explorer and Right click on X:\System Volume Information and assign Full privileges for your current administrator user. If you cannot see X:\System Volume Information, then you need to go to the Tools-->Folder Options menu and click on the view tab.
Then be sure that the following boxes are checked:

Display the Contents of System Folders
Show Hidden Files and Folders
and UNcheck the following box:
Hide Protected Operating System Files (Recommended)

Then do what was stated at the beginning of #3 above
4) Open the X:\System Volume Information and and copy the most "recent" working directory to x:\temp\registry\new. How do you know what's recent? The paths are named X:\System Volume Information\_restore{x-GUID-x}\RP###. Get the most recent RP### path from a date when the system was working - never choose RP### from the day on which you discovered corruption.
5) Now you need to back up files that we are going to replace: Copy all of the registry files from x:\WINDOWS\system32\config to x:\temp\registry\orig. The registry files will probably be the following: SOFTWARE, SAM, DEFAULT, SECURITY, SYSTEM -- with no extensions.
6) Delete those 5 files from x:\WINDOWS\system32\config.
7) Copy those 5 files from x:\temp\registry\new\rp###\snapshot to x:\windows\system32\config. Note: the files in snapshot will probably have the following prefix: _REGISTRY_MACHINE_ or _REGISTRY_USER. After copying, edit those file names so that they once again just say SOFTWARE, SAM, DEFAULT, SECURITY, and SYSTEM.
8) Move your hard drive back into the original system and reboot. And hope for the best. (Just kidding!) Your system should now run ok providing you selected a registry copy before the problem.

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