Disable and Enable Windows Key on Keyboard

Disable the Windows key

1. Click Start, then type regedt32 in the search box.

2. Click on Keyboard Layout, then in the Registry Editor menu, click on Edit, New, Binary Value.

3. Name the new entry as Scancode Map.

4 Double-click on the new entry and type in 00000000000000000300000000005BE000005CE000000000 as the value data, then click OK. You must type it in manually; copying and pasting will not work. It might be easier to look at it in pairs, as three rows of 16 digits:

example:

0000 00 00 00 00 00 00 00 00
0008 03 00 00 00 00 00 5B E0
0010 00 00 5C E0 00 00 00 00
0018

5. To save click OK.

6. Close the Registry Editor and restart your computer.

Enable the Windows key

1. Click Start, then type regedt32 in the search box.
2. Double-click on HKEY_LOCAL_ MACHINE, then SYSTEM, CurrentControlSet, Control.
3. Click on Keyboard Layout and right-click on Scancode Map. Click Delete then click Yes.
4. Close the Registry Editor and restart your computer.

Enable or Disable USB Port from Registry

Enable or Disable USB Port

Step1: In Windows 7  press Windows key+R and type as “regedit

Step 2: It will open the Registry Editor of  your Windows 7

Step 3: After opening Registry edit browse the following path in reght side bar of registry editor

The Path to go: “HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\USBSTOR”

Step4: Then right click the registry “Start” 

Step:5 Right Click “Start” and Click modify

• To enable USB ports: change the value from “4″ to “3″
• To disable USB ports: change the Value for “3″ to “4″

Computer Monitor Troubleshooting Tips

Here are some basic trouble shooting tips for computer monitors:
The picture does not appear

• Check to make sure the signal cable is firmly connected in the socket.
• Check to see if the computer system's power is ON.
• Check that the Brightness Control is at the appropriate position, not at the minimum.

The Screen is not synchronized

• Check to make sure the signal cable is firmly connected in the socket.
• Check that the output level matches the input level of your computer.
• Make sure the signal timing of the computer system is within the specification of the monitor.

The position of the screen is not in the center

• Adjust the H-Size, H-Phase or V-Size, V-Center controls.
• Check if the signal timing of the computer system is within the specification of the monitor.

The screen is too bright or too dark

• Check if the Brightness or contrast control is at the appropriate position, not at the maximum or minimum.
• Check if the specified voltage is applied
• Check if the signal timing of the computer system is within the specification of the monitor.
• Especially, check the horizontal frequency.

The screen is shaking

• Move all objects that emit a magnetic field, such as a motor or transformer, away from the monitor.
• Check if the specified voltage is applied.
• Check if the signal timing of the computer system is within the specification of the monitor.