> For the complete documentation index, see [llms.txt](https://docs.parallels.com/landing/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.parallels.com/landing/pd-ag/parallels-desktop-licensing-guide/signing-up-and-registering-a-subscription/renewing-and-updating-licenses.md).

# Renewing and Updating Licenses

A Parallels Desktop Business Edition license purchased online is renewed automatically for as long as the payment method on file remains valid, and until such time that the customer chooses to unsubscribe.

For Parallels Desktop Business Edition or Enterprise Edition licenses purchased via our sales channels there is a grace period of 30 days after the current license expires, during which the system will prompt the administrators to renew the lincese, but the setup will continue to remain activated.

When Parallels Desktop is running on a Mac, it sends a license renewal request to the Parallels Licensing Server at random intervals. Once a license update is available, it is automatically downloaded and installed. Please note that if the license key expires, Parallels Desktop will continue to run on a Mac until it checks in with the Parallels Licensing Server. This could be anywhere from a few minutes to seven days.

Parallels Desktop uses port 443 (the standard SSL port) to communicate with the Parallels Licensing Server from which it obtains license updates.


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