Help! Computer has slowed down and C drive is full!

I updated my antivirus software a week or so ago - now Avast Pro (?) - so wondering if that might be the culprit.

How can I free up some space? I had a quick hunt around the C drive and found some sample pics and music files to delete, but not much else. This computer doesn't have downloaded games, music, videos etc - just documents and a few pics of cows , plus a whole lot of 'system' files I'm scared to touch.

What do I do? TIA

How big is your computer C Drive?, what operating system does it use?

Empty the trash

hilldweller;330707 wrote: ... and a few pics of cows ...

Come on, 'fess up, how many is a few?

Just for fun I checked my photo folder: 27,936 files. There are some others somewhere else as well. [] It's a cow-person thing. []

I bought a Terrabyte of portable extra storage, into which I offload all sorts of things I don't need all the time - like the rest of the photos.

Hi
You can always buy a usb stick ,i have 2 of them with storage capacity of 8 GB each,you can buy them with lesser storage space ,no doubt you can buy them with bigger storage space .
one of our usb sticks is just for photos
Cheers Kevin