Windows 10: Cat walked on keyboard, now audio isn't working

Earlier today one of my cats walked on top of my keyboard, and now the audio won't work for anything. I tried using a different browser, which didn't work. I also followed other Microsoft help guides, but they didn't do anything. The settings all say that the audio is turned up and working, so I'm not sure what happened.

:)

 

Printer isn´t working after latest update.

After the latest update from Windows, my Canon Pixma ip6600 printer isnt working. In Device Manager it shows up as working properly but when I go to print it isn´t listed as an option in any programs. Troubleshoot suggests it´s a USB 2 printer on a USB
3 port and that that´s the problem but that cant be since it worked fine before the update. I´ve tried to uninstall and plug it back in but that doesn´t work either.

 

Colors changed when cat accidently walked across keyboard

Hi - Cat walked across keyboard and colors in background, lockscreen, themes changed from blue/greens to peaches/salmons. Happened before and was just temporary, was able to get back to original colors by shutting computer down and restarting. Now is
permanent. I have gone into Settings to attempt to change, and it shows my recent colors- I see salmon color and when I put cursor over it, it reads that it is "cool blue bright." Then one that I see as bluish reads that it is "orange." Then orange is
blue. Finally, one that I see as salmon reads "Seafoam." I would like to get back to my original colors. Any suggestions (other than getting rid of cats)? Thanks

 

Cortana isn´t working

When I hit enter, it did something, but there´s still no Cortana, even after restart. So I tried it again, but now it says that it failed, because it´s already installed and it´s working in PC. So it should work, but Cortana still isn´t here.