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Have you done a few neutral routes in Undertale that you are not proud of? Want to start over? Worry not, because there is a solution!

Method 1
Method 1 of 2:

Using a PC

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    • This PC may be under a different name such as, My Computer or just Computer.
    • It may be under a different name entirely if you or someone else who used the computer renamed it.
  1. ).[1]
    • This again could be under a different name such as OS (C:), Local Disc (C:), System (C:), or Windows (C:).
    • If it is under a different name you will know you're in the right place because it has (C:) after the name.
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  2. This could be any number of things because it is customizable. But it is the name that you set as the User.[2]
    • If unknown, press the Windows key and R at the same time. Then a window will pop up and say Open. If it is not already in the blank next to where it says open, type cmd or cmd.exe then click OK. Then another window will pop up with lots of text. Simply type in WHOAMI (no spaces) and this will show which user you are currently logged in as.
  3. This will be near the top of the list.[3]
  4. [4]
  5. You might have to scroll down some to find it as the list is in alphabetical order.[5]
    • This is where your save file is stored.
  6. You can either delete the file or move it to a place holder location on your computer if you want to revisit your old save again.[6]
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Method 2
Method 2 of 2:

Using a Nintendo Switch

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  1. [7]
  2. [8]
  3. This will delete the saved data for the game.
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Community Q&A

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  • Question
    Why can't I select it from the menu?
    wikiHow Answerer
    wikiHow Answerer
    Community Answer
    On the menu, it doesn't let you change your name; it keeps your name but resets only your progress. A true reset resets the whole game - name and everything.
  • Question
    How do I act Like Sans from Undertale?
    Doggo
    Doggo
    Top Answerer
    Be mysterious, yet have great charisma. Make yourself appear to have great power, yet don't show it unless it is necessary.
  • Question
    I can't find the AppData. I'm on a Windows, it isn't under the user, and I've checked every other user.
    TsukiBep
    TsukiBep
    Community Answer
    In your User's folder, look at the View tab of your Windows Explorer. At the "Show/hide" section, make sure the "Hidden Items" checkbox isn't ticked. If this still doesn't work, follow these steps: 1) Open "Command Prompt". 2) Enter the string of text below: attrib -s -h C:\Users\myusername\AppData The command above would remove any attributes set on this folder that could hide the folder.
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Tips

  • Once you have gotten to this location, it is advisable to keep a shortcut on your desktop because it is quite tedious to navigate back every time you need to access your save file.
  • If a new player is going to play the game on your computer, you might want to move your save file to keep the experience as unmodified as possible.
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Warnings

  • You cannot erase the fact that you have performed a genocide run. You can delete system_information_962 as many times as your heart desires but it will always come back.


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About This Article

wikiHow is a “wiki,” similar to Wikipedia, which means that many of our articles are co-written by multiple authors. To create this article, 11 people, some anonymous, worked to edit and improve it over time. This article has been viewed 172,480 times.
50 votes - 32%
Co-authors: 11
Updated: October 19, 2025
Views: 172,480
Categories: Online Role Playing
Thanks to all authors for creating a page that has been read 172,480 times.

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