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What is NTUSER DAT file?

Just found an ntuser.dat file in one of my folders? Cant delete it ? What is it ?

  • IWhen I try to delete it it says its being used by another program ????

  • Answer:

    I would suggest that you leave any NTUSER.DAT files alone. NTUSER.DAT files are absolutely essential. NTUSER.DAT files are the HKEY_CURRENT_USER hive for the registry. One NTUSER.DAT for each user on the machine, some templates and repair. C:\Documents and Settings\Administrator C:\Documents and Settings\Default User C:\Documents and Settings\LocalService C:\Documents and Settings\NetworkService C:\Documents and Settings\Your Name Here\NTUSER.DAT C:\WINDOWS\repair C:\WINDOWS\SYSTEM32\CONFIG\systemprofi… If you want to optimize your registry, use NTREGOPT.

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NEVER delete something unless you know what is. Try using a search engine, you know, like google or ask or yahoo.

Don't you just love the lame answers you get here, lol Yes you can delete the file but you probably shouldn't. I would if it was one my PC. It is a temp file but it is the user settings for a Registry file. If, like me you do regular backups of your System and some Data, you would not have to worry about this file and here's why, unless you are someone sharing one PC in a family with others using different logins, this file is just temporary. after the file has been rewritten the file becomes one of these ~, tilde characters. I use Revo Uninstaller (free) or CCleaner (free) and in the settings make sure the ~ selection is checked. Using a good junk file cleaner will get rid of all these files and allow you to keep the present file, .dat file. So you see, even if the file is 4MB, you shouldn't worry about it now unless of course your low on disk space, lol Again, be careful of the advice you get here!

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