TuneUp does not install

After acquiring AVG Tuneup and beginning to install it, it goes up to the Windows warnig asking you to allow the program to modify my device and after clicking 'Yes' it does nothing. (doesn't install).
The warning shows the path of the program (Avg setup Self-Extractor based on 7-Zip) and I looked there and the folder was empty.
(I use WinRar)
I looked for an e-mail to ask AVG for help, but the support page has millions of answers for other questions and no e-mail for me to ask for help.

Pls send me the e-mail so I can contact AVG support

Tks,
Paulo

Issue resolved (https://support.avg.com/answers?id=9060N0000000RJeQAM).
AVG Guru

Issue resolved (https://support.avg.com/answers?id=9060N0000000RJeQAM).
AVG Guru