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Can I safely delete MUI files/folders?

Posted on 2004-09-12
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Last Modified: 2012-08-13
When I use a software tool on my XP system to look for duplicate files I get a number of "hits" on MUI  files.  When I search on "MUI" I see a lot of MUI folders.  I dont need the language capabilities MUI seems to support.  Can I safely delete all the MUI "stuff"?  If so, what would be the best way to do so?
Thanks,
Dick_Y
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Question by:ryalmokas
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Expert Comment

by:Squew01
ID: 12038069
You can uninstall unused MUI in the Regional Options dialog (Control Panel->Regional Options->Language->Advanced) and you can safely delete them if they aren't used.

/squew/
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Author Comment

by:ryalmokas
ID: 12038182
I must be "dense" this morning . . . I open up the Regional options as you suggest, and I dont see how to turn MUI off.  Can you elaborate with "MUI off for Dummies (me)"?
Thanks,
Dick_Y
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LVL 3

Expert Comment

by:Squew01
ID: 12038394
I'm sorry. I didn't give you a correct answer.
MUI are used for Multilingual User Interface (so you can have Windows in french and in one click, have it in english)
You can uninstall MUI file using MUISetup.exe (try finding it on your computer in c:\windows\MUI or on the Service Pack 1 CD)

/squew/
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Author Comment

by:ryalmokas
ID: 12038618
Things are getting curiouser and curiouser . . . I did a search and found that executable on my system.  When I click on it, I get the msg:
Windows XP Multilingual Interface pack cannot be installed on this platform

I am on XP SP2.  Could it be because of XP2; or could all the MUI folders/files be from my W98 system?  (I had W98 on an older Dell.  I got a new Dell with XP installed on it.  I used PC_Relocator to migrate from the old box to the new one.)  After running cleanly for a while on the new box I then applied SP2 to XP.  

Regards,
Dick_Y
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Accepted Solution

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Squew01 earned 125 total points
ID: 12045337
MUI files can only be used under WindowsXP Pro (not Home) so if you've winXP Home, I think you can delete them....

But pay attention that software like Adobe Acrobat and Internet Explorer use MUI files. There is a list of folder called MUI on my computer (not to be deleted):

c:\Program files\Internet Explorer\MUI
c:\program files\Adobe\Acrobat\MUI
c:\windows\system32\MUI
c:\windows\srchasst\MUI

and some dll:
modemui.dll
icmui.dll
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Author Comment

by:ryalmokas
ID: 12045698
Thanks.  Your added information/suggestion about being careful etc. make a lot of sense.
regards,
Dick_Y
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