To transfer Access UBS to a new computer, first deactivate your license on the old computer and then install the software and activate the license on the new one. You'll need to be connected to the internet to do this.
On the old computer
Take a backup of your database.
Deactivate your UBS license (See also How to Deactivate License (Classic View) or How to Deactivate License (Modern View)):
Go to Admin, Administrator Settings, License Management.
Click Manage License.
Select I would like to deactivate my license over the internet.
Click Next.
On the new computer
Install the latest version of Access UBS from download.my.accessacloud.com.
Activate the license. (See also How to Activate License (Classic View) or How to Activate License (Modern View)):
Go to Admin, Administrator Settings, License Management.
Click Manage License.
Select: I would like to activate my software over the internet.
Create the company
Restore the company from your backup.