How do I get rid of this?

[c_marriott]

My friends laptop has got a virus on it and no matter how much its disabled/deleted it keeps coming back.

Does anyone know how to remove it entirely without a system restore?

This is a screenshot of the extension it shows as in chrome:

 

[scout_03]

check this you could use malwarebytes and clean the browser http://malware-detective.com/uninstall-unisales/ the other one in french with pictures https://www.comment-supprimer.com/unisales/

 

[Guest]

AdwCleaner will get rid of it.

You'll find this particular entry in the report, among other things:

Key Deleted : HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Uninstall\{4CEE92A3-9F0C-51AB-ADC0-34EC24AD7B7E}

 

[Guest]

AdwCleaner will get rid of it.

You'll find this particular entry in the report, among other things:

Key Deleted : HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Uninstall\{4CEE92A3-9F0C-51AB-ADC0-34EC24AD7B7E}

ADW Cleaner is the best by far for browsers! I have used it multiple times and it has never failed me!