upgrade from avast home to pro

Avast Free Antivirus / Premium Security
1

hello,

i want know why my pc after unistall home edition with licence key and i install the professional version the licence key don’t change and the program remain home edition … the key demo is missing on the splash screen for enter the licence .
now the avast don’t work and appear on video the message for buy professional licence…
can i have a valid licence demo key for 60 days for the professional edition …

i want perfom a test for my office with andm manager and 1 client with pro edition.

thank’s for help

2

Right click on the avast tray icon then click on about avast then click licence key and enter it
and What operating system are you using?

3

thank’s but the problem is not where insert licence key, i know it , but because after the installation of avast pro version may avst remain avast home edition !!1 and do’t permit the demo key licence for 60 day .

byebye

4

I will send you a demo key.