AVG TuneUp / AVG Secure Browser

Hello William,
Thank you for contacting AVG Community Support.
We understand that you are unable to start AVG Secure Browser.
We are really sorry to know this. We'll certainly check and help you out.
Could you please let us know the operating system name and version of your device?
Please check if you have updated AVG Secure Browser to latest version and try again.
Click ⋮ Menu (three dots) in the top-right corner of the screen, then select Help -> About AVG Secure Browser.
 Check for latest updates and install them.
Please do try and let us know.
Thank you.

I ran AVG TuneUp. Upon completion I tried to start AVG Secure Browser, but it won't start.

Hello William,
Thank you for contacting AVG Community Support.
We understand that you are unable to start AVG Secure Browser.
We are really sorry to know this. We'll certainly check and help you out.
Could you please let us know the operating system name and version of your device?
Please check if you have updated AVG Secure Browser to latest version and try again.
Click ⋮ Menu (three dots) in the top-right corner of the screen, then select Help -> About AVG Secure Browser.
 Check for latest updates and install them.
Please do try and let us know.
Thank you.

Hello William, 

Its good to know that you have managed to resolve the issue. If you need any further help with AVG, feel free to contact us at anytime. Have a great day!

Restarting my PC did the trick. I have successfully opened AVG Secure Browser, so all good now. THank you for your help.