Hi,
Here are some troubleshooting steps you can try that may solve the issue.
- Do try to load the laptop into Safe Mode. While the laptop is booting up repeatedly press on F8 until it shows Advanced Boot Options, select Safe Mode and press Enter.
- Once loaded in Safe Mode do run System Restore, restore it back to an earlier date or time before the issue happened.
- If this will not solve the problem last resort would be a complete factory reset.