TOPIC: Need person who's good at repairing pc's and stuff

Click on the START button
Click on SETTINGS
Click on SYSTEM
Click on POWER AND SLEEP (left hand side of screen)
Under RELATED SETTINGS (near the bottom of the page)
Click on ADDITIONAL POWER SETTINGS
Click on CHOOSE WHAT POWER BUTTONS DO ( on left hand side of screen)
Click on CHANGE SETTINGS THAT ARE CURRENTLY UNAVAILABLE (Near the top next to the shield)

Under SHUTDOWN SETTINGS (near the bottom of the page)
Uncheck the box for TURN ON FAST STARTUP
Click on SAVE CHANGES (page bottom)
This will insure that all enabled devices are initiated during Windows boot up.
This change will have very little impact on the actual startup and seems to speed up
the shutdown time. 
Shut down and see if the change eliminates the problem.

BLACK SCREEN WITH CURSOR? UNABLE TO LOG IN?

1: SWITCH OFF LAPTOP BY HOLDING IN POWER BUTTON

2: UNPLUG POWER SUPPLY and REMOVE BATTERY

3: PRESS YOUR POWER BUTTON (this discharges your laptops capacitors draining it of power, clears RAM etc.)

4: RE-INSERT BATTERY AND POWER SUPPLY

5: SWITCH ON LAPTOP.

Change the EnableULPS in the register from 1 to 0, as described here
http://answers.microsoft.com/en-us/w...4-2e56692c1c53, then reload the window.

Open Catalyst on the Switchable Graphics Global Setting tab, you will have the option "Allow additional power-setting", uncheck and apply the changes.

I hope that the next time you reboot the system you want.

In my case, the time of appearance of the window lock takes 24 seconds.

firstly wait long enough so the mouse cursor to appear when you move the mouse.
(blank screen with a white mouse cursor)

Then press the space-bar and enter your login password or pin (yes your doing this blind)

You should now be logged into windows 
if the desktop dose not appear after 30 seconds then press Win+P keys, down arrow keys twice, and enter to extend display.