events viewer warnings /errors

Is there away to delete safely errors and warnings from events appear to have lots and lots

event viewer

thank you for the info but i may have not explained properly what i was actually looking at i am quite new to computers but i have been contacted by phone by someone who has told me i have lots of errors ( some critical ) in programmes that will cause computer to crash and im not sure wether this is a scam or a real threat to my computer

It is a scam - definitely a scam.
Ignore or block such calls.

They are scammers, here's a few recordings of me having fun with them - Fake 'Microsoft' callers