The reason for this mistake fluctuates. Normally, it could be related to an obsolete graphics card, corrupted update or issues with the application\/game. The following are some fixes that you can attempt: Technique 1: Reboot PC First of all; when you experience the "not working" blunder, essentially power close the game and reboot your PC. In rebooting your PC, it is prescribed to reboot in the Start menu, and not by means of the force button. Typically, this should fix the error. Nonetheless, if the game despite everything won't work, there are clearly different elements in play, in which case, you run the Windows App troubleshooter to fix any innate mistake (in the game). On the off chance that the mistake endures, attempt the following fix. Technique 2: Reinstall or Update Graphics Drivers One of the most famous reasons for game blunders on PC is obsolete or broken hardware. What's more, it's additionally one of the fundamental issues here. To refresh illustrations drivers, essentially go the official site of your graphics card producer (typically NVIDIA or AMD\/ATI) and download\/introduce the most recent drivers on your PC. Presently, after proper update, turn on Plants versus Zombies again and check whether the mistake is fixed. In the event that it endures, attempt the following fix. Technique 3: Update PC On the off chance that you've as of late refreshed your PC and you experience issues, for example, it may be the case that the update fizzled or was corrupted. Truth be told, it's the most likely situation. To determine this, you'd need to reinstall the updates, and this time guarantee that the update is finished. Follow the steps underneath to install updates on Windows 10; \tGo to the Start \tSelect Settings > Update and Security. \tClick on Windows update > Check for updates (accessible updates will be consequently downloaded and introduced). \tRestart PC (as needed).