Sometimes, you may get stuck with the Avast and you have to disable it. Now, you can easily Turn Off Avast and for that right-click on the Avast icon available in Windows system tray. Click on the Avast shields control and then choose the duration to disable it. After that, you will be asked for the confirmation and then, confirm it by clicking on Yes on the dialog.

http://www.avast.uk-help-number.co.uk/