Dual Boot

I have Windows Vista 32 bits.I have installed an evaluation copy of Windows 7 .At the end, I have decided to made a clear Windows 7 installation  in the other computer.How can I do to eliminate the dual boot from Windows Vista?

Question Info

Last updated March 26, 2018 Views 11,938 Applies to:

JC Moreira,

Did you rebuild your boot configuration data as mentioned, here are the steps again:

To run the Bootrec.exe tool, you must start Windows RE. To do this, follow these steps:

  1. Put the Windows installation disc in the disc drive, and then start the computer.
  2. Press a key when you are prompted.
  3. Select a language, a time, a currency, a keyboard or an input method, and then click Next.
  4. Click Repair your computer.
  5. Click the operating system that you want to repair, and then click Next.
  6. In the System Recovery Options dialog box, click Command Prompt.
  7. Type Bootrec.exe /RebuildBcd, and then press ENTER.
  8. (Lets also run the following Type Bootrec.exe /fixMBR, and then press ENTER.)
  9. Restart


Note If rebuilding the BCD does not resolve the startup issue, you can export and delete the BCD, and then run this option again. By doing this, you make sure that the BCD is completely rebuilt. To do this, type the following commands at the Windows RE command prompt:

  • bcdedit /export C:\BCD_Backup
  • c:
  • cd boot
  • attrib bcd -s -h -r
  • ren c:\boot\bcd bcd.old
  • bootrec /RebuildBcd


Refer to the following article on Boortrec.exe for more detail:



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