Can I Delete Temporary Files in Windows

Chapters
0:00 What are temporary files?
0:32 Why temporary files?
1:20 Finding your temporary files
2:00 Crashes
2:40 Improper shutdowns
2:55 Running programs
3:15 Updates and rollback
3:50 Caches
4:50 Logging
5:05 Bad programming
5:40 Viewing and cleaning temporary files
6:30 Beware of downloads folder
7:55 System files