This screw may be tightly fixed.
How to remove a patio door window.
Open the door and locate the head stop screw at the top corner of the door frame right where the door would touch the frame when it closes.
The patio door is now only mounted with the corner bearing and can be easily lifted out.
Removing a sliding patio door is only moderately challenging but by using the tools and steps below you can remove one with little difficulty.
Stay bearings are normally protected by plastic covers.
Unscrew the head stop with a power or phillips screwdriver.
Remove these covers with pincers or a screwdriver.
Step 1 unscrew the interior casing or trim since sliding doors are generally heavy with a considerable width of six to eight feet you might need to ask for help from a friend when lifting it out.