Did I accidentally download MacKeeper, and what should I do now?

If one has accidentally downloaded MacKeeper, they have installed a utility that's often promoted as a tool to clean, protect, and optimize a Mac system. Unfortunately, MacKeeper has a controversial reputation due to aggressive marketing techniques, difficulty in uninstalling, and concerns over its effectiveness and safety. If one finds themselves with MacKeeper on their computer and wishes to remove it, they should follow the steps to uninstall it properly. It is advisable to quit the application and all related processes first. Then, navigate to the Applications folder to locate MacKeeper and move it to the Trash. They should be prompted for an administrator's password which allows them to delete additional components the software may have installed. One could also consider using an uninstaller feature if provided by MacKeeper or using reliable antivirus or software removal tools that can ensure all associated files are removed effectively. It is crucial to download software from trusted sources and remain vigilant about what gets installed on one’s system to reduce the risk of such situations.