Conditional Formatting to display Unique Values across Multiple Columns

you could use

=AND(J4=$H4, L4=$H4 )

confused on if we are comparing I and J and K and L - with H
or if you are checking different columns on different rows

OR you could just use
=$H4=I4 and apply to I4:L100
or what ever row you want
and then the cell that does not match will highlight

Please upload a small clean sample of your data / workbook (not a picture) to the forum, Make sure you have removed any private information, remember this is a public forum and so available to anyone
We would like to see an example of your data and also a manual mock up of the expected results you want to achieve.

To attach a file to your post,
click "Go advanced" (next to quick post),
scroll down until you see "manage Attachments",
click that and select "Choose File" (top Left corner).
Find your file, click "Open" click "upload" click 'close windows" Top Right. click "Submit Reply"

Once the upload is completed the file name will appear below the input boxes in this window.
You can then close the window to return to the new post screen.