inverted colors

When I printed a pdf to my printer from my laptop, the piece of paper had a black background with white letters instead of a white background with black letters. This issue only arose on my personal laptop; every other device I use prints normally to the same printer. Could someone help me with...

Hey i own a msi GE63VR raider (1060 version).I was thinking of getting an external 144hz monitor for it since the laptop display is a bit too small for my liking.I am pretty newb at this and was going for a samsung monitor with a dp 1.2 and hdmi connectivity. The laptop only has a mDp so my...