Hello,
It appears that the system magnifier has been turned on and everything has been zoomed. I suggest you to zoom out by pressing "Windows Key" and " - ke y" together. Once you press "**Windows Key"**and " - key" together this will turn on Magnifier and when it shows that the magnification percentage is 100% then you can stop pressing "Windows Key" and " - key". Now you can close the magnifier.
Update us on the outcome.
Regards.