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NUL is a special, reserved file name. NUL is the data sink character device under MS-DOS and related operating systems, including all forms of Windows.

What this is means is that NUL behaves in some ways like a file, but isn't. In particular, data may be written to and read from NUL, but NUL may not be deleted, created, or renamed. Because of the semantics of character devices, all files whose base name is NUL, regardless of extension, are treated identically to NUL.

Files are sometimes created with the very long filenames or reserved names: CON, AUX, COM1, COM2, COM3, COM4, LPT1, LPT2, LPT3, PRN, NUL

To delete these use the syntax: DEL \\.\C:\somedir\NUL

If a file (or folder) still appears to be 'undeletable' this is often caused by the indexing service.
- Right click the file you need to delete, choose properties, advanced and untick "allow indexing" you will then be able to delete the file.

To cure the problem permanently - Control Panel, Add/Remove programs, Win Accessories, indexing service.

If it is Locked, then you need to do this trick:
- Close all applications
- Open a command prompt
- Click Start, and then Shut Down
- Simultaneously press CTRL+SHIFT+ALT.
- While you keep these keys pressed, click Cancel in the ShutDown Windows dialog box.
- In the command prompt window, navigate to the cache location, and delete all files from the folder (DEL /s)
At the command prompt, type explorer, and then press ENTER.

So you cannot remove it. And don't try to, you will have have some problems. But if you insist., Do it.

2006-06-09 13:00:18 · answer #1 · answered by ? 6 · 2 1

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2016-11-14 09:51:53 · answer #2 · answered by ? 4 · 0 0

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