Expert in
PC Health Solution
All-in-one PC health solution: clean, optimize and secure
Comprehensive PC cleaning, optimization and protection
Keep drivers always up-to-date
More stable performance with less system crashes
Protect millions of computers against malware
Top computer security with full-round protection
Protect against viruses & boost PC performance
Note: If you do not have the program installed, click here to download the latest version of IObit Software Updater 4 and install it first.
Step 1: Open your IObit Software Updater 4 Free, click Enter Code under the Activate Now button at the bottom right of the main screen to open the registration window.
Step 2: Copy & Paste to enter your license code in the License Code box, and click the Activate button to get Pro edition.
Step 1: Open your IObit Software Updater 4 Pro, click Manage License text link at the bottom right to open the License Manager window.
Step 2: Click the Refresh link in the License Manager window to open a new registration window.
Step 3: Copy & Paste to enter your new/renewal license code, and click theActivate button to get the new service time
