Windows Laptop Drive/Folder Access Troubleshooting

I'm facing a frustrating access issue with my Windows laptop. Folders are showing a red cross and my downloaded items drive is not loading. I haven't made any recent changes to the system, so I'm not sure what's causing the problem.

Ideal Skills:
- Proficient in Windows OS troubleshooting
- Experience with hardware and software diagnostics
- Good understanding of data recovery and system repairs.

I need a professional who can quickly identify the problem and provide a suitable solution.