No installation is necessary, the program runs immediately without installation. No uninstallation is necessary.
Use the Trial Version
You can test O&O DiskStat with no restrictions for 30 days free of charge and obligation. When starting the program a registration assistant will appear each time displaying the remaining trial time.
Updates/Installing Updates of O&O DiskStat
O&O DiskStat automatically checks if a new version is available whenever it’s started.
If there is a new program version, you will be able to update your version.
Suggestion: You can find your license data and the exact version number you’re using by clicking About O&O DiskStat... in the Ribbon Bar at Help.
So-called Minor-Updates (Version 4.1 to 4.2, 4.0 to 4.5, etc.), where smaller changes in the program have been made, are free. Major updates, such as from version 4 to 5, must generally be purchased.