To install SuperMemo on your computer do the following:
If you are a computer beginner, please read Installing SuperMemo for Beginners. You will find there step-by-step instructions for downloading, copying files, installing learning material as well as upgrading from earlier versions of SuperMemo or updating SuperMemo to the latest release build
To uninstall, delete the folder in which you installed SuperMemo.
Remember that this will likely delete everything related to SuperMemo: collections, plan schedules, sleep timeline, etc. Deleting the folder will still leave 3-4 entries in Windows registry.
You can uninstall SuperMemo (without removing your learning material) if you follow these steps:
If you cannot find SuperMemo entry in the Programs and Features window, use sm15unin.exe located in the SuperMemo folder (e.g. C:\Program Files\SuperMemo (Computer administrator) or C:\SuperMemo (Limited account) by default).
SuperMemo Uninstall program was designed to remove only the files that have been added at installation. It should not delete your collections, plan schedules, sleep timeline, etc.