Gmod Noms 5GB?

It’s odd, but true.
Each time I start Garry’s Mod, 5 gigabytes from the hard-drive go away. Nearly instantly too. Omgwtfbbq? I can’t play like dis D:

Delete your addons.

Sigh I knew someone would say this. It isn’t my addons. I said it took up 5GB instantly. Not already.

How much ram do you have? Could it be pagedfiles?