It is something with your Internet Explorer security setting or with your Windows anyway.
I had same issue when I used external VPS service (not MQL5 VPS) for example, and I had to re-install IE and change all the settings of IE and I spent a lot of time to understand about this settings of IE ..
File - Open Data Folder. Click on Terminal - Community.
Please close the terminal.
Delete all *.dat files from C:\Users\%USERNAME%\AppData\Roaming\MetaQuotes\Terminal\Community\ folder.
It is something with your Internet Explorer security setting or with your Windows anyway.
I had same issue when I used external VPS service (not MQL5 VPS) for example, and I had to re-install IE and change all the settings of IE and I spent a lot of time to understand about this settings of IE ..