Increasing the Folder Cache

I use windows XP found this trick on another board but...

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can someone break this down for what the advantages of this here, is for???

How is this helping my computer?

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Increasing the Folder Cache

Added 1/6/02

The default setting for WindowsXP is to cache the Explorer settings for 400 folders.

To increase it:

(1)Start Regedit

(2)Go to HKEY_CURRENT_USER\Software\Microsoft\Windows\Shell NoRoam

(3)Change the vaule of BagMRU to whatever size you want (hex)

1000 - 3e8

2000 - 7d0

3000 - bb8

4000 - fa0

5000 - 1388

According to Microsoft Tweak UI which can also change the setting in Explorer->Customizations this is the info it states (screenshot):

expcust3lk.png