How do i unsubscribe from all addons at once

I have over 100 addons and my computer is really slow and there isnt much space on Local Disk C:/. is there a quick way that i can unsubscribe from and delete all addons? Thanks if you can help my steam profile page is http://steamcommunity.com/profiles/76561198018251691

No way; you’ll have to go 1 by 1.

you can unsubscribe faster by going to garrysmod on the steam workshop and clicking your subscribed items

faster than doing it in garrysmod itself anyway