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Registry Disaster

XP Home SP1 P4 2.4 Gig
Got a microsoft installer error, the one stated here.;en-us;315353

So I followed the M$ advice and had a major disaster.

After rebooting, no apps have any icons or program affiliations.
System Restore, My Computer, Explorer, Control Panel are all non-functioning.

If I boot to Safe Mode w command window, I can get to the registry editor, but so far have not been able to
fix the problem.I should have backed up the registry first, but I haven't been able to import the HKey_classes_ROOT from another computer anyway. It says there are errors and won't import it.

Looking at permission for that KEY, it didn't have SYSTEM in the list, so I added it and gave it FULL permissions.

If I could get System Restore to function, I would just go back.

Any ideas...

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(NT) (NT) ''What about'' the last paragraph of the article?

In reply to: Registry Disaster

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Re: (NT) ''What about'' the last paragraph of the article?

In reply to: (NT) ''What about'' the last paragraph of the article?

Unfortunately, system restore will not run from the command prompt.

So I finally did a repair install and it still has the registry errors.

So i guess its now, clean install time.

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''Will not'' or ''Cannot''?

In reply to: Re: (NT) ''What about'' the last paragraph of the article?

The article [Q304449] describes steps for starting System Restore from the Command Prompt when you are unable to start the computer normally or in Safe mode.

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Re: ''Will not'' or ''Cannot''?

In reply to: ''Will not'' or ''Cannot''?

I do believe I said CANNOT.

Nothing except regedit would run from safe mode with command prompt. I took awhile but I finally figured out (actually my son did) that the permissions in the registry were screwed up on the HKey_CLASSES_ROOT key.

The permissions for Administrator and Administrators was not there, this stopped all program usage when booted to an admin account. Once the permissions were added back the problem went away.

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Merl, do you have a bootable WinXP CD?

In reply to: Registry Disaster

If so, then try this. Basically, it's a how to for using the Recovery Console. NOTE: Read the piece twice before starting, then follow the instructions without fail. It's not hard - just complicated at some points...

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Merl, Before you try a clean install--

In reply to: Merl, do you have a bootable WinXP CD?

Since I had similar problems with XP when I added SP2 and tried to uninstall some applications, I re-installed XP over the problem XP installation. (Not a repair install, but a complete install without formatting the HDD) The new installation corrected all the registry problems, but left all the installed programs in place and did not eliminate my important files. (Naturally if you can --back up your important files first)Of course you will have to reinstall the service packs to XP but this is a small price to pay for straightening out the registry.

Good Luck.


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Re: Merl, Before you try a clean install--

In reply to: Merl, Before you try a clean install--

I finally fixed the permissions problem in the registry.
I got all the programs to run again, however, there were already more problems that I didn't know about.

Apparently the registry was damaged in other places as well before my fiasco.

So I did a clean install without formatting so the data is all still there, just need to re-install the programs.

Less time wasted doing a re-install than trying to fix a screwed up system.

Thanks All

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