My Computer with Windows XP is showing screen downward (Reverse order).
I have used CTRL + arrow keys to change, and I have also changed my LCD.
But problem is still persist.
 Is it a Hardware problem or Windows problem.
I have no original CD for Windows to reinstall it.
Please help me to resolve the above said issue.
There are two or more ways to solve this problem. First try the keyboard shortcut which may be different from what you have done since XP is different from other Windows versions: Ctrl+Alt+Arrow Up.
The next option is to look for the Graphic Card icon in the notification area.
Try to right-click on the icon to open the Rotation Settings of the Screen.
The last option is to go to the Display Settings by pressing the right click on an empty space in the desktop.
Click the Settings button and choose the Advanced tab. You may now choose the rotation setting of your screen.
Remember to save the changes before exiting the Display Settings.
Maybe your screen is only rotated 180 degrees that is why you are looking at it upside down.
Even if you changed your display to LCD it will still not change. In Intel 82845G/GL/GE/PE/GV video cards, the shortcut for rotating the screen to 180 degrees is CTRL + ALT + Down.
This is the upside down view. To return it back to normal, the shortcut would be CTRL + ALT + Up.
Since you didn’t mention what your video card is, let’s go to Control Panel.
If, in case, the display didn’t go back to normal format your hard drive and install Windows again.
