How to unblock zip files in Windows 10
Unblock File in Properties
1. Right-click or press and hold on the blocked file, and click/tap on Properties.
2. Click/tap on the General tab, press the Unblock button ( for some versions, check the Unblock box at the bottom and click/tap on OK. (see screenshot below)
3. If prompted, click/tap on Continue, and click/tap on click/tap on Yes (if administrator) or enter the password of the administrator (if standard user) for UAC prompt. (see screenshot below)
You will only be prompted if the file is in a location that your user account does not have access rights to by default.