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Invalid Signature

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Whenever I tried to intall the new version of itunes, it appeared a message saying that the publisher was unknown and that the file had an invalid signature, so it was not possible to run the application. I removed my current Itunes and tried again, but never worked either on google chrome nor IE (with differente safety configurations to check if that was the problem, but did not turn out to be).

So I decided to install Mozilla, and I kept getting the same invalid signature problem to intall it! When I found out your website (which had a similar topic but did not seem closed), I decided to start the step-by-step malware cleanup and I couldn`t even download the temp files cleaner, as I was also getting the same message on invalid signature!!

I have Avira AntiVir and they did not detect any problems, although I am not able to update it (error message without any specification)

So, what turned out to be a itunes problem seems to be a problem with my PC, but I cannot solve it....if anyone can, please let me know!!! thanks!!
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Welcome to Geeks To Go!

Please post on the Malware forum as we aren't allowed to deal with what could be a malware infection on this particular forum.

Read this before posting: http://www.geekstogo...uide-t2852.html

Then post here if necessary: http://www.geekstogo...emoval-f37.html

Edited by phillipcorcoran, 22 February 2010 - 04:10 PM.

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