Disable Scripts are usually safe, Do you want to allow scripts to run warning

  1. Press Windows Key + R combination and put inetcpl.cpl and hit Enter to open Internet Properties.

  2. In the Internet Properties window, switch to Security tab, now click to Custom level option as shown below.

  3. Moving on, in the Security Settings – Internet Zone window so appeared, scroll down to look for option Allow websites to prompt for information using scripted windows. Since you’re facing the issue and getting pop-up repeatedly, you’ll find this option set to Enable. So restore it to Disable, which is default setting.

Finally, click OK and then OK followed by Apply for the step 2 window. Now do a reboot, that should fix the issue. Hope this helps!