2. In the pop-up dialog box, switch to the "Advanced" tab, uncheck "Check the signature of the downloaded program", and check the checkbox to allow running or installing the software, even if the signature is invalid.

3. Click the Settings button in Browsing History under the General tab.

4. Select "Automatic" in the pop-up setting dialog box to empty the temporary file, then change the storage location of the temporary file and click OK.