1. Mount the ParallelsDesktop-20.3.2-55975.dmg image, run the installer, enter the administrator password and wait for the installation to complete, close the application.

2. Use PDCrackTool for Intel or Arm, enter the password and install. Open terminal and go to crack directory (enter cd drag and drop crack.sh), from there enter sudo ./crack.sh (don't forget to provide full disk access for terminal.app) in the menu select 20.3.1

3. Optionally block the following addresses either in Firewall or in hosts (done for pasting into hosts):

Code:
127.0.0.1 update.parallels.com
127.0.0.1 desktop.parallels.com
127.0.0.1 update.parallels.com.cdn.cloudflare.net
127.0.0.1 desktop.parallels.com.cdn.cloudflare.net
127.0.0.1 www.parallels.cn
127.0.0.1 www.parallels.com
127.0.0.1 www.parallels.de
127.0.0.1 www.parallels.es
127.0.0.1 www.parallels.fr
127.0.0.1 www.parallels.nl
127.0.0.1 www.parallels.pt
127.0.0.1 www.parallels.ru
127.0.0.1 www.parallelskorea.com
127.0.0.1 reportus.parallels.com
127.0.0.1 parallels.cn 127.0.0.1
parallels.com 127.0.0.1
parallels.de
127.0.0.1 parallels.es
127.0.0.1 parallels.fr
127.0.0.1 parallels.nl
127.0.0.1 parallels.pt
127.0.0.1 parallels.ru
127.0.0.1 parallelskorea.com
127.0.0.1 pax-manager.myparallels.com
127.0.0.1 myparallels.com
127.0.0.1 my.parallels.com
127.0.0.1 download.parallels.com

In some cases, parallels will put comments, the # sign , on some lines in hosts, that is, it will roll back the changes made above, to prevent changes to hosts after editing, run the command in the terminal:

Code:
sudo chflags uchg /etc/hosts && sudo chflags schg /etc/hosts
this will block the ability to edit hosts

if you need to unblock hosts, run the command in the terminal:

Code:
sudo chflags nouchg /etc/hosts && sudo chflags noschg /etc/hosts
you can check hosts with the command:

Code:
cat /private/etc/hosts

If the message Parallels is damaged, you should move to trash appears , you need to do the following:
1. Run the command from the terminal:

Code:
sudo xattr -cr "/Applications/Parallels Desktop.app"
enter the administrator password, then:

2. Go to applications folder and find Parallels Desktop app, right-click on it and open, the application will start normally and there will be no error when you open it again.

Do not update the application!