Save your project. Save your PC. Get the real key. Disclaimer: This article is for educational purposes. Distributing or using cracked software violates copyright laws (DMCA, EUCD). The author does not endorse piracy.
Open Proteus. Go to Help > About. You should see your name (or company name) and the expiry date (if it is a subscription). proteus software license key
Your license key still works. You can continue using the last version of Proteus you downloaded before the expiry date. However, you cannot upgrade to new versions, and you lose access to support. Save your project
Download the latest version from the official Labcenter website. Do not use old CDs or third-party download sites. Disclaimer: This article is for educational purposes
The manager will attempt to connect to the Labcenter server. If your PC has internet, it will download a license file automatically ( LICENCE.LCK ). If you are offline, you will need to copy the "Request Code" to an internet-connected machine, go to the Labcenter website, and generate a "Response Code."