To resolve the issue, restart the Apache Service:
- Restart Apache2 service.
- On the system tray, right-click the Apache Service Monitor and select Open Apache Monitor.
- Click Apache2 and select Restart.
If this does not work, provide the right permission:
- Click Start > Run.
- Type in “services.msc”.
- Right-click Apache2 service and select Properties.
- Choose This Account and use your administrator’s account.