Broken Photoshop, Please help

[Nyla_B]

When opening any file in photoshop, this green screen occurs. I don't know what is going on. I'll give a picture below. When zooming out, this green block kind of flashes and I can see the file underneath. 

I've tried removing the graphics processor in the system preferences.

[JJMack]

Have you tried installing Windows on your Mac just kidding. What Mac OS are you using?

[Nyla_B]

LOLL!! 

My computer just updated yesterday. So the latest update. 

[Mike_Gondek]

Reset PrefsThoroughly (Mac)

• Quit Illustrator (100% you must do this)
• Finder >> Go (hold down option to show hidden) >> library 
• Preferences >> Adobe  >> (Program Name) rename to (Program Name) .old
• Library- >> Caches >> com.(Program Name) rename to (Program Name) .old
• Library >> Application Support >> Adobe >> (Program Name) rename to (Program Name) .old

[Nyla_B]

Just to be sure illustrator or photoshop? The first step says illustrator. 

[Nyla_B]

I wish i could say this worked, but the instructions are a little unclear

what is the issue?