I do not have Parallels Desktop 10 installed
Download and install Parallels Desktop 10:
How do I get my Parallels Desktop 10 trial key?
Start Parallels Desktop 10. You will see the registration window. You should either log in to your existing account or create a new one.
After you log in or create an account, you will see the activation window. Click Get Trial.
Your copy of Parallels Desktop 10 will be activated with a trial key automatically:
How long I can use my Parallels Desktop trial?
You can use Parallels Desktop trial for 14 days. The period cannot be extended.
Do I get full-featured Parallels Desktop 10 if I activate it with a trial key?
Yes, Parallels Desktop 10 trial is full-featured without any functionality limitations.
You can purchase the full version at any time during your trial period and reactivate your copy with it. Go to the Parallels Desktop menu, click on Activate Product to open the Activation window where you can enter your new key.
Note: you will not have to reinstall Parallels Desktop or your Windows OS to start using a commercial version of the software.