Change Icon Cache Size in Windows  

    Change Icon Cache Size in Windows

    Change Icon Cache Size in Windows

    How to Change Icon Cache Size in Windows
    Published by Category: Performance & Maintenance
    25 Jan 2019
    Designer Media Ltd


    How to Change Icon Cache Size in Windows


    The icons that display for files in Windows are saved in an icon cache so they can be displayed quickly instead of having to manually scan and slowly load them each time.

    Sometimes you may notice File Explorer loads icons slowly when you open a folder with lots of files. Increasing the size of the icon cache may help.

    By default, the icon cache is 500 KB. Increasing the icon cache size to 4 MB gives the best results, but you can change the size to what works best for you.

    This tutorial will show you how to change the maximum size of the icon cache to fix slow loading icons in File Explorer for all users in Windows 7, Windows 8, and Windows 10.

    You must be signed in as an administrator to change the icon cache size.


     CONTENTS:

    • Option One: Change Icon Cache Size using a REG file
    • Option Two: Manually Change Icon Cache Size in Registry Editor





    Change Icon Cache Size in Windows OPTION ONE Change Icon Cache Size in Windows
    Change Icon Cache Size using a REG file

    The downloadable .reg files below will modify the string value in the registry key below.

    HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer

    Max Cached Icons string value

    (delete) = Default
    4096 = 4 MB



    1. Do step 2 (4 MB) or step 3 (default) below for what you would like to do.


     2. To Change Icon Cache Size to 4 MB

    A) Click/tap on the Download button below to download the file below, and go to step 4 below.

    Set_icon_cache_size_to_4MB.reg

    download


     3. To Restore Default Icon Cache Size (500 KB)

    A) Click/tap on the Download button below to download the file below, and go to step 4 below.

    Default_icon_cache_size.reg

    download


    4. Save the .reg file to your desktop.

    5. Double click/tap on the downloaded .reg file to merge it.

    6. When prompted, click/tap on Run, Yes (UAC), Yes, and OK to approve the merge.

    7. Restart the computer to apply.

    8. You can now delete the downloaded .reg file if you like.





    Change Icon Cache Size in Windows OPTION TWO Change Icon Cache Size in Windows
    Manually Change Icon Cache Size in Registry Editor

    1. Press the Win+R keys to open Run, type regedit into Run, and click/tap on OK to open Registry Editor.

    2. Navigate to the key below in the left pane of Registry Editor. (see screenshot below)

    HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer

    Name:  Max_Cached_Icons-1.jpg
Views: 1065
Size:  92.0 KB

    3. In the right pane of the Explorer key, double click/tap on the Max Cached Icons string value to modify it. (see screenshot above)

    If you do not have a Max Cached Icons string value, right click on an empty area in the right pane of the Explorer key, click/tap on New, click/tap on String Value, type Max Cached Icons for the name, and press Enter.

    4. Enter the icon size you want in KB (1 MB = 1024 KB), and click/tap on OK. (see screenshot below)

    Name:  Max_Cached_Icons-2.png
Views: 1037
Size:  7.3 KB

    5. Close Registry Editor.

    6. Restart the computer to apply.


    That's it,
    Shawn


  1.    #1

    Good one, Shawn!
    Worked a treat for me!
    I view by Large Icons with a large number of files on many drives.
    The icons still have to render but they render quickly; no more Explorer progress bar lagging on slow as molasses in January!
      My ComputersSystem Spec

  2. Brink's Avatar
    Posts : 39,863
    64-bit Windows 10 Pro build 18922
    Thread Starter
       #2

      My ComputersSystem Spec

  3.    #3

    @Brink

    It 'd be even better if I set the value to 8192 KB instead 4096? What's the max size that we can keep or modify for best result?
      My ComputerSystem Spec

  4. Brink's Avatar
    Posts : 39,863
    64-bit Windows 10 Pro build 18922
    Thread Starter
       #4

    SM03 said: View Post
    @Brink

    It 'd be even better if I set the value to 8192 KB instead 4096? What's the max size that we can keep or modify for best result?

    4096 for a 4MB cache size usually gives the best results. You can go higher, but you may be hitting diminishing returns. It won't hurt anything to test and see how it works for you though. You can always change it again.
      My ComputersSystem Spec

  5.    #5

    Brink said: View Post
    4096 for a 4MB cache size usually gives the best results. You can go higher, but you may be hitting diminishing returns. It won't hurt anything to test and see how it works for you though. You can always change it again.
    diminishing returns
    can you explain this to me
      My ComputerSystem Spec

  6. Brink's Avatar
    Posts : 39,863
    64-bit Windows 10 Pro build 18922
    Thread Starter
       #6

    SM03 said: View Post
    diminishing returns
    can you explain this to me

    It's basically the point you reach when there are no more benefits. It doesn't hurt anything, you just don't see anymore benefits from going too high.
      My ComputersSystem Spec


  7.    #7

    Brink said: View Post
    It's basically the point you reach when there are no more benefits. It doesn't hurt anything, you just don't see anymore benefits from going too high.
    I see, it's a economics term you used. Thanks anyway.
      My ComputerSystem Spec


 

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