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How to Resolve - Duplicate Windows 8 on Dual Boot Screen?

Duplicate Windows 8 on Dual Boot Screen

Yesterday I installed Windows 8 Pro on top of my old Windows 7 install.  However, I had the Consumer Preview installed in a separate partition for a while, and, upon upgrading to W8 I figured I'd get rid of the other, now unnecessary install.
For some reason,
mostly laziness, I foolishly decided to eliminate my Consumer Preview Windows 8 by deleting the partition, and then extending my Primary partition onto the now empty space.  Everything worked out pretty well, except for one thing: whenever I boot or restart
my computer I'm greeted with a Dual Boot Screen asking me to chose between two installations of Windows 8, my current fully functional one, and what I'm assuming was the Consumer Preview installation.  Attempting to boot the hypothetical CP install of W8 gives
me a BSOD, for obvious reasons, and I can't figure out how to get rid of it.  Help?

Solutions to the Problem Duplicate Windows 8 on Dual Boot Screen

Download SmartPCFixer to Fix It (Free)

You need to use bcdedit
 
First on the Metro interface select show all applications the select the command prompt with a right click and on the menu bar select run as administrator.
 
Then type bcdedit
 
Then look carefully at the list and copy the identifier of the entry you want to delete.
Then type bcdedit /delete boot loader identifier
where boot loader identifier is the identifier of the entry you want to delete
 
NB: to copy in the command prompt right click, mark, then select the text as you would Under a gui.
to paste right click paste

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 Duplicate Windows 8 on Dual Boot Screen.

  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.

Another Safe way to Repair the Problem: Duplicate Windows 8 on Dual Boot Screen:

How to Fix Duplicate Windows 8 on Dual Boot Screen with SmartPCFixer?

1. You can Download SmartPCFixer here. Install it on your computer. When you open it, it will perform a scan.

2. After the scan is finished, you can see the errors and problems which need to be repaired.

3. The Fixing part is done, the speed of your computer will be much higher than before and the errors have been removed.


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by HowToFixMicros | 2016-09-30 09:52