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    How to fix Kingdom Hearts 3 Ultrawide Issues on PC

    Kingdom Hearts 3, along with a bunch of other titles in the series are finally out on PC. Square Enix has released these on the Epic Games Store, and most of these ports are very good. Performance is fantastic all around, and players have the option to choose higher framerates as well. This doesn’t mean the port is perfect, however, and this seems to be a common trend for a lot of PC releases. The ultrawide support is lacking, and we doubt it will be patched in. If you want to fix the Kingdom Hearts 3 Ultrawide Issues, here is how you can do that.

    The PC version is exclusive to the Epic Games Store, and we expect these games to come out on Steam, and other clients after a year. Hopefully, even more console exclusives can make their way to PC as well. Sony recently announced that they plan to bring multiple games to PC, including Days Gone, which comes out on Steam, and Epic Games Store this Spring.

    Fixing Kingdom Hearts 3 Ultrawide Issues

    As we previously mentioned, even though the port is pretty good, ultrawide support is completely lacking. If you have read our previous guides for ultrawide fixes like this before, this guide isn’t that different from that, though it does go into more detail.

    Download and install HxD

    • First, you need to download and install the HexEditor

    Launch and use HxD

    • Launch HxD, which you previously installed
    • Now, head over to where the game is installed (Kingdom Hearts III), and navigate to the following folders

    Binaries\Win64

    • Here, drag KINGDOM HEARTS III.exe into HxD, and a bunch of values will show up
    Various HEX Values can be edited for different uses using a HEX Editor, like HxD
    Hex Values for Kingdom Hearts 3

    Pillarboxing

    • Press CTRL+R, and then select Hex-Values
    • After this click on Search Direction “All”
    • In the search Window, you want to enter AC 8B E3 3F 39 and replace it with the value corresponding to your aspect ratio, from below (thank you WSGF for providing these)
    Common Name for Aspect RationFormatted Hex Value
    5:400 00 A0 3F
    4:3AB AA AA 3F
    3:200 00 C0 3F
    16:10CD CC CC 3F
    15:955 55 D5 3F
    16:939 8E E3 3F
    1.85:1CD CC EC 3F
    2.39:1C3 F5 18 40
    2.76:1D7 A3 30 40
    3×5:400 00 70 40
    3×4:300 00 80 40
    3×16:109A 99 99 40
    3×15:900 00 A0 40
    3×16:9AB AA AA 40
    21:9 (2560×1080)26 B4 17 40
    21:9 (3440×1440)8E E3 18 40
    21:9 (3840×1600)9A 99 19 40
    32:10CD CC 4C 40
    32:939 8E 63 40
    • Since we are doing this guide for 32:9, we will use 39 8E 63 40
    Replacing Hex values in HxD will fix the Kingdom Hearts 3 Ultrawide Issues
    Replacing Hex Values in HxD

    Pillarbox Continued

    Moving on, you want to do the same with the following three values, with a key difference. In the values mentioned below, you only want to replace the 3B 8E E3 3F part.

    • C7 80 28 04 00 00 3B 8E E3 3F
    • C7 83 08 04 00 00 3B 8E E3 3F

    and

    • C7 83 28 04 00 00 3B 8E E3 3F

    To do this, follow the steps below

    • Simply press Ctrl + F together to bring up the Search Window
    • Here, click on Hex-Values, and then enter one of the values from above, in this case, we have entered C7 80 28 04 00 00 3B 8E E3 3F
    • Set Search Direction to All, and then click Search All
    You can search different Hex values in HxD by pressing Ctrl + F
    Searching for a value in HxD
    • This will highlight the searched value in the main window
    Any Hex value searched will be highlighted in HxD
    Search Result
    • Now, select the 3B 8E E3 3F part, and replace it with the appropriate value from the table above
    • Since we are doing this guide for 32:9, we will replace it with 39 8E 63 40, by simply copy-pasting
    Replacing a specific part of the Hex value is possible by clicking on Paste Insert
    Replacing a value manually
    • After you do that, it will look like this
    Updated values will be highlighted in red color
    Updated value

    Repeat this for C7 83 08 04 00 00 3B 8E E3 3F and C7 83 28 04 00 00 3B 8E E3 3F

    UI

    Now, we will be fixing the UI. This is simple, and you can do it by following the steps below.

    • Search for F3 0F 5E C8 F3 0F 10 35 EE 58 13 04 and replace it with F3 0F 5E C8 F3 0F 10 35 F2 58 13 04
    Replacing these values will also fix Kingdom Hearts 3 ultrawide issues related to the UI
    Replacing values in HxD
    • You either do it by replacing it (Ctrl + R), or by simply searching and copy-pasting the new value over
    • Now, press Ctrl + S to save the file

    Thank you Reddit user KingKrouch for providing the solution. Here is a video demonstration of the fix.

    We hope this guide was helpful. If you have any questions, feel free to ask them in the comments below.

    Ali Hashmi
    Gaming enthusiast, massive soulsborne fan, and a passionate writer. Always on the lookout for interesting games with unique mechanics and design. He loves to write informative guides for newer and ongoing releases.

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    6 Comments

    1. after i edit it. double click on KINGDOM HEARTS III.exe
      windows show ‘This app can’t run on your PC’
      any solution for this?

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