You would diagnose the problem to determine what the cause is. Assuming this is a power window, it could be the electric motor, the switch, the wiring, the circuit breaker, the relays, the window track, the window regulator and so on.
illegal yes in all of the US but if u get them tinted right, you wont get hassled. Generally the covers are just a fix it ticket.
Yes, there is a manual to fix a Honda Accord window being off track. A person can obtain this maintenance manual, it is will give direction on how to fix the windows.
depends on what is wrong with it you may need a new engine to fix it
Most Body Shops will charge a lower per hour cost to repair a window because of the locked in cost allowed by insurance claims. When I ran a shop my cost was around $50 + any additional parts needed. Most of the time it was just a repair cost.
buy a new window
usually by replacing window regulator.
change the window seal / gasket.
you need to replace the window regulator
Try a silicone lubricant.
If it is a shallow scratch, then you can use an item such as Scratch Fix 2in1.
no but there's this stuff that removes scratches
You can purchase a repair car window kit that has the instructions on how to fix your crack. If you have insurance however, I would recommend getting a repair shop to fix it since it is covered on your isnurance.
Hold down the child lock when you press the button to raise the window.
You can try buffing the scratches out, though you can always get a screen cover for your DS.
Apply a bit of toothpaste and rub