How can I diagnose any slowdowns or trouble spots in my PC to see what’s causing the slowdown?

1. Check for viruses and other malicious software.

2. Run System Maintenance tools such as disk cleanup, disk defragmentation and scanning for errors.
3. Make sure your computer is up-to-date with the latest security patches and updates.
4. Monitor your PC’s CPU, memory, and disk usage with a tool like Task Manager.
5. Check your startup programs and remove any unnecessary ones.
6. Disable unused applications and services.
7. Clean up your temporary files.
8. Scan for hardware issues using diagnostic tools that come with your PC.
9. Upgrade your hardware (if necessary).
10. Uninstall any programs that you don’t use regularly.