Hi,
Please do try these troubleshooting steps that may help.
- Start by trying to load the laptop into Safe Mode.
- While the laptop is booting up repeatedly press on F8 until it show Advanced Boot Options then select Safe Mode and press Enter.
- Once loaded in the desktop screen open Task Manager and disable all startup items.
- Reboot your laptop once done and see if it will get pass the starting windows screen.
- If all these will not work load Safe Mode once again and run System Restore.
- Put your PC back to an earlier date or time before you had cleaned up your laptop.