I have a Viking 445. I lowered the feed teeth and when I move the witch to put them back up they do not return to the up position. Is there anything I can do to remedy the situation?

SOURCE: Husqvarna 950E, the feed teeth will not lower.

If the machine has been taken apart it may have been reassembled improperly so that the dial on front of freearm is interfering.
Also, try removing the needle plate. If the teeth touch the side of the plate they may not drop properly.

SOURCE: removing needle plate from viking sewing machine

throat plate is usually tight with screws may be that the holding magnet and once the button is located near shuttle and it should press plate up...

SOURCE: feeds dogs are lowered even when in the up position

Check to see if there is a bunch of thread under the needle plate preventing the feed dogs from returning to run position.

This may mean having to take the needle plate off and really looking

SOURCE: needle hitting stitch plate on my Viking Lilly 545 recently had it serviced, was sewing fine

try a new needle
if the needle is still hitting the needle plate, then it's possible that the machine is out of time and needs to be adjusted, or there is something wrong with the needle bar.