1. Will mBlock 5 replace mBlock 3 that I previously installed?

No, it won’t. They can be used on the same computer. You can use mBlock 3 and mBlock 5 at the same time.

2. I get a blank white screen when I start mBlock 5 on Windows. Why?

Your graphics driver version is too early. You need to upgrade the graphics driver.

3. I want to install mBlock 5 on my PC. Are there any requirements on the CPU or memory of the PC?

No specific requirements. You can install mBlock 5 as long as your PC runs the OS X system or Windows 7 (or later).

4. I want to use mBlock 5 on the web. Which browser do you recommend?

Google Chrome is recommended. You can download it at the official website.

5. When I install mBlock 5, a 360 message box is displayed indicating that a program attempts to change the DLL file. What can I do?

When this happens, choose to allow the operation this time.

6. I install mBlock 5 on my PC for the first time, but the computer housekeeper blocks the installation. What can I do?

When this happens, choose to allow the operation this time.

7. When I use the 360 software housekeeper to uninstall mBlock 5, the uninstallation is blocked and a message is displayed, indicating that a program is modifying the key settings of the system. What can I do?

When this happens, choose to allow the operation this time.