127. You cannot create a folder named CON !!!

It is fact that you cannot create a folder named "CON", nor can you rename an existing folder to "CON". "CON" and a number of other character strings are in fact reserved names that go back to the days of DOS and cannot be used to name folders or files. Other reserved names are:

* PRN
* AUX
* NUL
* LPT1
* COM1
* Potential drive letter - A: to Z:
* A number of others


If you try to name a folder using one of these reserved names, the name will automatically revert to the default, generally "New Folder". Moreover, if you try to use a reserved name to name a file such as a Notepad or Microsoft Word document you will generally receive an error message similar to the following:



Depending on exactly how you save the file, you may instead receive a warning message advising that a file with that name already exists. However, even if you choose "Yes" to overwrite the existing file, you will still not be allowed to save the file.

110. Invert Windows screen

This is one of the scariest tricks which turns Windows upside down. You can press Ctrl, Alt and then any of the four arrow keys (Ctrl-Alt-Down will rotate screen by 180 degrees)!
NB: It has been noticed that this doesn’t work on certain Windows XP machines (It is dependent on video driver).

103. Funny trick for notepad

A funny trick You can do using Notepad in Windows XP.

Open Notepad.
Type the words as follows:

Bush hid the facts

Now save the file (give it any name you like), close the notepad.
open it again.yuu will see Square characters (or) Chinese letters instead of the words you had written.
It Works Only with XP.