Windows Installation:
After download install the trail version and move the file patch.exe and patch.dat to the installation directory C:\Program Files (x86)\Acunetix\12.0.190902105\
Run patch.exe and fill in the relevant information and start Service.
Goto your browser and type https://localhost:3443 enjoy! 
Linux Installation:
Dependence
sudo apt-get install libxdamage1 libgtk-3-0 libasound2 libnss3 libxss1 libx11-xcb-dev
chmod 777 acunetix_trial.sh
sudo ./acunetix_trial.sh
Modify the port and restart
nano /home/acunetix/.acunetix_trial/wvs.ini
sudo systemctl restart acunetix_trial.service
Copy the crack patch to the path
/home/acunetix/.acunetix_trial/version/scanner/ and then
unzip patch_awvs.zip
sudo ./patch_awvs
License retention
chattr +i /home/acunetix/.acunetix_trial/data/license/license_info.json
enjoy!
Download (MEGA)
Password: ENBD