This happens because QQ Browser integrates Tencent PC Manager's engine, which automatically blocks installation packages that involve memory modification. Simply press Ctrl + J to go to the download management page, locate the file, and select "Unblock." As long as you have confirmed the file comes from the official website and bears the official digital signature, this action is completely safe. Steps to unblock in QQ Browser: 1. Access the records page: Press the shortcut Ctrl + J in the browser to go to the "Downloads" or "Download Management" page. 2. Perform unblock action: Below the blocked GameBuff installer, click "More actions" -> select "Unblock" or "Restore file." 3. Confirm and run: In the secondary confirmation pop-up, select "Download anyway." 4. Alternative solutions (if unblock fails): - Click the "Alternative Download" button on the official download page and try getting the file via mirror channels such as Baidu Netdisk. - Or temporarily disable the "Download Protection" feature in Tencent PC Manager and try again.
