To restore ARES Commander to its factory settings, please enter in the search box next to the start menu "Reset Settings" and select this option.
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Note: When you have selected the "Reset Settings"-option the migration dialog will be shown: It is recommended to choose "chancel",otherwise older folders will be linked to the previous used folders and you will no be able to achieve a "clean" installation again (should you need to).
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​Below the Manual Method to Reset the ARES Commander Settings:

To restore the factory or installation settings of ARES Commander you can rename or remove the following user settings folder under:
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Location under Windows Vista, 7, 8, 8.1 and 10(32-Bit):
c:\Users\[User name]\AppData\Roaming\ARES Commander Edition

For the 64-Bit Version of ARES:
c:\Users\[Username]\AppData\Roaming\ARES Commander Edition x64
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Location under Windows XP (obsolete, not supported with newer ARES Commander versions):
c:\Documents and Settings\[User name]\ApplicationData\ARES Commander Edition

Notes:
ARES Commander shouldn't run during the renaming or removing process of the user settings folder.
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The display of AppData folder is hidden in Windows system defaults. You can change it in the Windows Explorer via the Menu Tools->Folder Options...->Tab View and the list box "Advanced Settings".

By typing %appdata% into the address bar of the Windows Explorer and pressing the Return/Enter-key, you can directly open your User-Roaming-folder.