Especially when using SSD, previously like 2 seconds now become 3 minutes or more.
1. Update all Intel/Display/Sound card drivers.
2. Double check Windows doesn't change page file location from SSD to HDD.
3. Disable ClearPageFileAtShutdown
Windows Registry Editor Version 5.00
[HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\Session Manager\Memory Management]
"ClearPageFileAtShutdown"=dword:00000000
After the above 3 steps, my Windows 10 shutdown speed resumed normal.