Use of debugging mode in xp

my xp failed to recognize my keyboard and trackpad and also external keyboard and mouse is also not working! i use ACER 5738 laptop. but at boot or in other os it is working fine! i need this installation because i have a lot of encrypted content!. kindly help!..
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More about debugging mode
  1. your system is set to shut off the the mouse and keyboard to save power.
    This is a bug in XP.
    click my computer, on your desktop
    click control panel, it's on the left hand side of my computer window
    click the "system" icon, a window will open that says system properties
    click the hardware tab
    click the device manager bar
    when the device manager window opens, scroll down, find universal serial bus controllers
    double click universal serial bus controllers, it's on this list
    now you will see a list, find USB root hub on the list
    double click the first USB hub on the list (or in a laptop check the settings for mouse and keyboard power saving)
    when the USB hub properties window opens, click the power management tab at the top of the window
    now you will see a box that says: "allow computer to turn off this device to save power"
    Un-check that box, click OK
    Now double click the second USB hub on the USB Hub Properties list, click the power management tab, un-check the power saver box just as above and click OK
    Now repeat that same procedure for all the other USB hubs on the list, un-check the power saver box in each USB hub, until you have done all the USB hubs on the list. There may be several, you must do each, one at a time.
    Now close all your windows and restart the computer.
    Now the mouse should stay on.
    The computer was turning off the mouse to save power. It's a bug in XP.
  2. How in blazes do you get to the Control Panel when your keyboard and mouse are USB devices and the USB hubs are powered off?
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