Follow these steps
1
Restart the laptop and install pending Windows updates.
2
Open Task Manager with Ctrl + Shift + Esc and disable unnecessary Startup apps.
3
Free disk space using Settings > System > Storage > Temporary files.
4
Run Windows Security full scan to rule out malware.
5
Uninstall programs you no longer use from Settings > Apps.
6
Keep at least 15–20% of the system drive free; consider an SSD or RAM upgrade if performance remains poor.