Solution to Problem: Dell Latitude laptop running Windows 7 freezes after booting up

Dell Latitude laptop running Windows 7 freezes after booting up

I have a dell latitude e6420, windows 7 enterprise.  on boot up I am taken straight to my screensaver, no login prompt.  there is no toolbar or apps/files on the desktop.  the keyboard is also non-responsive.  the mouse does move however nothing to select. 
re-booting results in the same experience.
Please help!!!!

Solutions to the Problem Dell Latitude laptop running Windows 7 freezes after booting up

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This particular error can easily be resolved with a few simple steps. However, if you are not confident in your ability to use the methods below or they do not fully remove the issue on your computer, you may want to seek the assistance of a qualified repair technician who is well versed in fixing Dell Latitude laptop running Windows 7 freezes after booting up.

1. Back-up the Registry of your operating system.
2. Find the Registry Key: [HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\WindowsUpdate\OSUpgrade]
3. Note: this Registry Key should already exist, if it does not exist, create it.
4. Create a brand new DWORD Value that is named AllowOsUpdate
5. Set the Value to 0x00000001.
6. Close and reopen your Control Panel.
7. Restart the Microsoft Windows.

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