How to Delete Ntuser Data
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Responsible for storing Windows user account settings and preferences, the Ntuser file is a system file that must be present for the user account to function. Depending on several factors, the Ntuser file can take a noticeable amount of drive space.
If you are removing a user account you no longer need on your computer, this file can safely be deleted. You will need to be signed in on a different account with administrative privileges to remove this file.
Click "Start" then click "Computer." Double-click the "Local Disk C" icon.
Click "Tools" then "Folder" options. This opens a small dialogue window. Click the "View" tab. Click to remove the check mark next to "Hide protected operating system files" then click the "Apply" button and close the dialogue window.
Double-click the "Users" folder. This folder contains subfolders named according to the account name. Double-click the account folder. Right-click "NTUSER.DAT" and click "Delete." Click the "Yes" button on the confirmation dialogue. You can also delete the "NTUSER.DAT.LOG" files.
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