Just to clarify, if it was me, I would uninstall and reinstall Strawberry Perl.

(This is lingo from Windows XP, but your installation is similar.)

Settings

Control Panel

Add or Remove Programs

Scroll down to Strawberry Perl

Click the Remove button.

Exit the windows.

Download the latest Strawberry Perl from the website, i.e., http://strawberryperl.com/.

That should be a .msi file.

Run it.