I dropped my dell laptop, now it turns on & shows the xp windows logo. I notice the the booting bar is in activation but it does not stop, ever.
Most likely you damaged the hard drive.
Listen closely for noises coming from the hard drive when the laptop tries loading Windows. Can you hear repetitive clicking noise or grinding noise? If yes, the hard drive was damaged.
Turn off the laptop as soon as possible. Hopefully you still can recover personal files from the failing hard drive.
If the hard drive was damaged, you’ll have to replace it with a new one and reinstall Windows OS.