How to Uninstall POS Standard
This guidance only apply for POS Standard
Take a backup
Backup is always a good way to go back if we do something wrong with the system, don’t forget to do that before making any change to your system
Disable Magestore modules
Turn on maintenance mode
php bin/magento maintenance:enable
Switch to developer mode
php bin/magento deploy:mode:set developer
Remove cron
php bin/magento cron:remove
Disable all Magestore modules
Remove data
Login to your database
Turn off foreign key checks
Drop tables created by Magestore modules
You can ignore tables that do not existTurn on foreign key checks
Delete attributes created by Magestore modules
Remove registered module
Remove module code and dependencies
Remove code
Remove 3rd module dependencies
If you have any modules that depend on the Magestore modules, you need to disable or remove them in this step too.Run compilation
Turn on production
Turn on cron
There you go, you have completely removed Magestore POS