How do you get rid of colors that appear in your text? Suppose you have tried the painting tool, the highlighting tool, and all else, but nothing worked, so say you had the option to turn off highlighting off for some reason, say hacking, which is probably my case today. What else can you do to get rid of the annoying colour in the background? Here you have the best of the solutions if you don't mind losing formatting. Basically, click CTRL + SPACE BAR to remove all formatting after selecting your chunk of text with the select tool/mouse.
The source: https://answers.microsoft.com/en-us/msoffice/forum/msoffice_word-mso_other/i-cannot-remove-highlights-from-word-2010/e901ac6a-5904-4152-ba1a-b6b5d22a7087