Its obviously some type of permissions problem in Windows. Have you changed anything recently? Are you running as a limited user, and saving the file in an adminstrator folder?
Can you try turning off your antivirus altogether and then see if it works?
or
Right-click the blocked file and then select Properties.
In the General tab, select Unblock if the option is available.
Can you try turning off your antivirus altogether and then see if it works?
or
Right-click the blocked file and then select Properties.
In the General tab, select Unblock if the option is available.