1. Please go here /xl7.9/intro.html to download Thunder again, and then uninstall and reinstall it. (Be sure to uninstall and reinstall to avoid covering up old problems.

Download records can be saved. Go to my computer-control panel-uninstall uninstall and call the uninstall program of Thunder 7 to uninstall. During the uninstallation process, you will be prompted whether to keep the download history. Click Yes.

And then installed in the same location)

2. If there is still no response after double-clicking the installation package.

(1) Right-click the installation package-Properties-Digital Signature-Select the intermediate date-click View Details, and then check the pop-up box above to see if the digital signature is normal.

There is something wrong with the representative installation package, which needs to be downloaded again.

②win7 system, please right-click the installation package and choose to run the attempt as an administrator.

③ Restart the computer and press F8 to enter the installation safety mode.

3. If it still doesn't work, it is generally intercepted by some software or damaged by some files in the system environment. You can directly try to install with 360 software housekeeper. If not, build it.

Reinstall the computer system.

For more questions, please ask thunder network Platform.