1. Check if the destination disk is full. If it is full, it cannot be downloaded.

2. Check whether the installed antivirus software or security guards affect the download.

3. Delete the history and have a look at cooking.

4. Open the Security panel, click Custom Level to enable all downloaded options, and then click OK. Then click the "Advanced" column in the Internet options, find the "Security" column, and check "Check the signature of the downloaded program". Further down, "software is allowed to run or install, even if the signature is invalid." Hook it. Click OK to save.