If you do not own a license and simply want to use the software longer, you will encounter significant hurdles.

You cannot simply reinstall Premiere Pro CS6 to reset a free trial because the restriction is managed online via your Adobe ID. The only legal way to use CS6 beyond the trial is to purchase a serial key (if you can still find a legitimate one) and license the software. However, given the compatibility issues with modern operating systems, you will likely have a smoother experience switching to modern editing software.

Adobe Premiere Pro CS6 represents a significant era in video editing history. Released in 2012, it was the last version of the software available under a traditional perpetual license (a one-time purchase) before Adobe transitioned fully to the Creative Cloud (CC) subscription model.

This isn’t piracy—it’s re-using a trial you’re legally entitled to if you’ve never activated a paid license. But if you already registered a serial key during the trial, the clock is tied to Adobe’s servers. In that case, no amount of folder deleting will bring it back.

Here’s an interesting, slightly nostalgic, and cautionary write-up on the topic:

Standard uninstallation through the Control Panel (Windows) or Applications folder (macOS) often leaves behind licensing cache files that block reinstallation.

After reinstalling Premiere Pro CS6, I was pleased to find that the software performed just as well as it did before the free trial expired. The rendering times, playback performance, and overall responsiveness were all on par with my previous experience. I also noticed that Adobe had released some updates during my trial period, which were automatically applied during the reinstallation process.

Sometimes a user is entitled to a trial, but the software glitches. In this case, a clean reinstall is necessary. This involves more than just dragging the app to the trash.

If you are moving CS6 to a new computer from an old one, you must deactivate the software on the old machine first (Help > Deactivate) before you can activate it on the new one. Adobe allows CS6 to be active on two computers at once, provided you are not using them simultaneously.

Reinstalling Premiere Pro CS6 after a trial has expired requires a complete "clean" of existing trial files to prevent licensing conflicts. Since Adobe has transitioned to the Creative Cloud (CC) model, users often encounter errors where the system continues to see the expired trial even after a standard uninstallation. 1. Complete Uninstallation