Looking on the internet deeply has found these results:

on my computer is the most popular phrase on the web.

in my computer 124,700,000 results on the web	on my computer 134,000,000 results on the web More popular!
Some examples and use cases from the internet:	Some examples and use cases from the internet:
You remember how Saunders' little drill ended with a bullet in my computer? Our possibilities I note down in my computer something said by Ken Casey that I read in a magazine on the plane: How odd the human race is I don't want you in my computer. Once I'm finished taping, then I put it in my computer, and then I'll scan it and take a peek at it. Look, I downloaded the photos in my computer. To be fair, in my computer, your picture is displayed in 200%. How about when I put your name in my computer? I can say there was an internal glitch in my computer, that the information was lost...	It doesn't look like this phrase is very popular! The search could not find any examples on the internet.

in my computer

124,700,000 results on the web

on my computer

134,000,000 results on the web

More popular!

You remember how Saunders' little drill ended with a bullet in my computer?
Our possibilities I note down in my computer something said by Ken Casey that I read in a magazine on the plane: How odd the human race is
I don't want you in my computer.
Once I'm finished taping, then I put it in my computer, and then I'll scan it and take a peek at it.
Look, I downloaded the photos in my computer.
To be fair, in my computer, your picture is displayed in 200%.
How about when I put your name in my computer?
I can say there was an internal glitch in my computer, that the information was lost...

It doesn't look like this phrase is very popular! The search could not find any examples on the internet.