AVAST 2015 pro block everything

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Dear All,

Our Company are using AVAST 2015 pro. One of our user clicked for some pop up message from avast and now she could not send email open a file two times print to pdf. I could not find where can i restore tha avast to normal work. If i turn out avast everything is working well. I checked the quarantine blocked files.....etc and i didn't find any problem.

Please someone help me!

[Pondus]

Have you tried to restart pc?

Have you tried avast repair?
Control panel > ad/remove programs > avast > uninstall/change > repair option

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Yes i tried. After computer restart it works for some file opening. And an email sneding after comes the problem again