I have two AVG Internet Security 2015 and one license. One is enough for me

Hello Nickolay,
We request you not to post multiple times for the same issue, you won't obtain an answer to your query faster.
Please refer your other posting via https://support.avg.com/answers?id=906b0000000Xb2C .
Thank you.

2016.05.08 _14:15 GMT +3. Hello! I wanted to install on the old system block free antivirus. 14:21 GMT +3. 2016.05.09 _08:30 GMT +3. In your letter was such a reference: http://files-download.avg.com/inst/mp/AVG_Antivirus_Free_692.exe. When I began to install the program, it became clear that this is not a free anti-virus, and AVG Internet Security 2015. Had to enter the license number. And then on the new system had block select free 30-day trial period. And now I have a new system block AVG window lettering: "the trial version expires in 16 days."
I now must first when connected Online on the old system block delete AVG, then turn off the Internet. And then on the new system block I can enter your license number, which bought the 1 year recently, 2016 March 19. I need only one license. The old system unit I sell. Or have I misunderstood?
Write in order to do that.
True to delete the anti-virus when switched on the Internet is dangerous. Hackers can send malicious code.
 
One more question. When I turn on the computer and did not immediately enter the user profile, but something busy, AVG does not monitor Internet connection? Here says that for AVG there are startup. I just don't understand, AVG is loaded immediately after launch or just after my entrance into the user profile? Apparently, immediately after the start. Answer to I don't know, but I knew. 8:54 GMT +3.

Hello Nickolay,
We request you not to post multiple times for the same issue, you won't obtain an answer to your query faster.
Please refer your other posting via https://support.avg.com/answers?id=906b0000000Xb2C .
Thank you.