Used CCleaner on Registry Problem

ANyways, I used my clear registry from CCleaner, and made a back up. When I restarted my computer is said that my copy of windows is not activated. I have a real version of windows and this is the first time seeing this.

Anyways, I try and re-merge my backup files and it says that this is not a valid Win32 application.

I am on windows xp and the back up file name is backup.reg ... I really don't know what to do

You can try clicking on Start, Run then type regedit

Click on and the registry editor should open. From there click the file menu and import. Then browse to the location of your registry backup and click the open button in the dialog.

Im not sure though that will solve your activation issue. CC should not have removed any registry keys relating to activation. System restore might be another option for you. Aside from activating again.

Welcome to Piriform Sivy.

ANyways, I used my clear registry from CCleaner, and made a back up. When I restarted my computer is said that my copy of windows is not activated. I have a real version of windows and this is the first time seeing this.

Anyways, I try and re-merge my backup files and it says that this is not a valid Win32 application.

I am on windows xp and the back up file name is backup.reg ... I really don't know what to do

Well I've never merged a reg file in my life, just double-click it. It should show the regedit.exe icon in Windows Explorer. If it doesn't and its a true *.reg file you need to associate this file extension to regedit.exe.

If Disk4mat's suggestion doesn't work then if you right-click on this file and select Edit it will open with NotePad so you can see whats in the file. If anything isn't legable then it could be corrupt you would need to edit it and SaveAs another *.reg file name. ;)

You can try clicking on Start, Run then type regedit

Click on and the registry editor should open. From there click the file menu and import. Then browse to the location of your registry backup and click the open button in the dialog.

Im not sure though that will solve your activation issue. CC should not have removed any registry keys relating to activation. System restore might be another option for you. Aside from activating again.

Well, it didn't solve the activation issue but I was able to merge the registry back-up in that way without problems. I tried system restore before also... maybe I will have to go further back... although i don't think that will help.

It is a very strange error. Said that I changed my hard-ware that it has to be re-activated, which is wrong because I haven't changed anything at all.

Well... Since your running a legit copy of Windows it would be easier to re-activate at this point. If you already used system restore, then it would seem its not an option to keep rolling back.