這個我研究好久~~

終於找到解法

她是英文的，我就不翻譯了~
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(一)
1. Open Start Menu.

2. In white line (Start Search) area, type regedit and press Enter.

3. Click Continue for UAC prompt.

4. In regedit, go to:
HKEY_CURRENT_USER\Software\Classes\Local Settings\Software\Microsoft\Windows\Shell\Bags

5. In left pane, right click on Bags, and click Delete.

7. In regedit, go to:
HKEY_CURRENT_USER\Software\Classes\Local Settings\Software\Microsoft\Windows\Shell\BagMRU

8. In left pane, right click on BagMRU and click Delete


(二)
10. In regedit, go to
HKEY_CURRENT_USER\Software\Classes\Local Settings\Software\Microsoft\Windows\Shell

11. In left pane, right click on Shell and click New and click Key.

12. Type Bags and press Enter.

13. In left pane, right click Bags and click New and click Key.

14. Type AllFolders and press Enter.

15. In left pane, right click AllFolders and click New and click Key.

16. Type Shell and press Enter.

17. In right pane of Shell, right click on a empty area and click New and click String Value.

18. Type FolderType and press Enter.

19. In right pane, right click FolderType and click Modify.

20. Type NotSpecified and click Ok.


(三)
Increase Folder View Cache Memory :

21. In regedit, go to:
HKEY_CURRENT_USER\Software\Microsoft\Windows\ShellNoRoam

22. Right click BagMRU Size, in right pane.

23. Click Modify.

24. Dot the Decimal and type 20000 and click Ok.
NOTE: 5000 is the default setting.