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This is a discussion on Dat.file within the PC Gaming Support forums, part of the Tech Support Forum category. I opend a dat. file in notepad, and now all dat. files open in notepad. Cant play any games, cause


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Old 04-07-2012, 03:22 AM   #1
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I opend a dat. file in notepad, and now all dat. files open in notepad. Cant play any games, cause it crashes on loading screen. Saying "error game.dat does not respond" and so on. Please help me!

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Old 04-10-2012, 12:07 PM   #2
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Hello and welcome to TSF

this solution will have you to edit the registry so before doing anything, first back up the registry, to do so:

press start, in the search box type:
regedit

and press enter

now click on file -> Export, choose where to save and save it, this will backup your registry, now if anything bad happens after you try what I'll tell you next, just go to regedit again, click import and choose where you saved the registry to import it.

Now what you need to do:

Go to Regedit, on the left panel there should be some file extensions

now to access one of those, double click on it so every "->" in the exemple is a double click, here we go:

-> HKEY_CURRENT_USER -> Software -> Microsoft -> Windows -> CurrentVersion -> Explorer -> FileExts

now you are in the FileExts, you can see lots and lots of extensions (eg: .exe, .txt, etc....)

search for .dat
double click on it, and delete "OpenWithList" (right click, Delete)

Close Regedit and restart your PC

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Old 04-22-2012, 03:48 AM   #3
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Thanx for the help. However it did not fix the proplem.
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