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Is UAC on or off?
UAC is ON
And now, what should I do?
>And now, what should I do?
Follow the instructions in the knowledgebase doc
perhaps my problem is related, can you supply a link to the knowledgebase doc, and what is UAC?
You have the same problem to install upgrade to version 8.1.1?
UAC = User Account Control, is a technology and security infrastructure first introduced with Microsoft's Windows Vista operating system. ...
And... I agree, we need the link to the knowledgebase doc. (?)
search the knowledgebase for "1402", without the quote marks.
I installed Adobe reader 8.1 on my machine which has Vista. Subsequently I received a pdf document which arrived as an Excel document. It also has changed previous pdf's to Excel. What is going on??? I need a simple explanation as I am by no means a computer whiz. Thanks.
It's probably not changing them to Excel documents. Your computer just thinks they are Excel docs and is trying to use that to open them.
That is called File Associations. I would Google that term (and add Vista to the search) and see if you can figure out how to change the associations back to Reader.
Or hopefully a Vista user will be by and can let you in on the secret but this thread is unrelated to your problem so the right people may never see it.
I am not a computer whiz either, but I am getting really frustrated with this. I searched for knowledgebase doc and found a lot of things, but nothing related to this error message. Can someone help?
i have the same problem upgrating from 8.1.1 to 8.1.2.
i am running vista home premium sp1.
UAC is deactivated.
trying Fix_1406ACL does not help.
Microsoft clean uninstaller, does not help.
THE FIRST bad thing is that it is not possible to:
THE SECOND bad thing is that a procedure to manually delete, for VISTA
does not exists.
i had the same problem on vista home premium before upgrating to sp1.
I have Vista Home and downloaded Adobe Reader. I get invalid plug in detected Adobe reader will quit every time I need it to read a document. It works fine on my desktop with XP. Help
Curtis...in another post the people on that thread had success by going to C:\Program Files\Adobe\Reader 8.0\Reader and delete the plug-ins folder and then do a repair. Good Luck!
Curtis and Gene - I had problems with Adobe reader 8, crashes and same error (invalid plugin detected) after installing SP1 on Vista. I replaced Adobe reader with the newer 8.1.2 and that seems to have fixed it (as well as supposedly remedying other security exposures). You have to de-install your current Adobe version first, before attempting to download and install 8.1.2. BTW, it failed the first time with a nasty message and crash ( possibly because I hadn't de-installed the older version first) but succeeded nicely on the second try.