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Discussion Starter · #1 ·
I was trying to upgrade my Dell Laptop running
Windows 7 Pro, x64 to Windows 10 and got an error message at the end.

Error 0xC1900101 - 0x20017
The installation failed in the SAFE_OS phase with an error during BOOT operation

Does anyone know what that error is?
 

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Using Google to solve problems
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Does this Help? Fix Windows 10: Installation Failed in the Safe_OS Phase - Technipages

Before attempting to upgrade again, open a Command Prompt as Admin and Copy and Paste or Type the following Bold commands Separately and press Enter

DISM /Online /CLEANUP-IMAGE /RestoreHealth after that completes type

SFC /scannow

After following the instructions in the link above, try upgrading again. If all fails, then backup your files and do a Clean Install of Windows 10
 

· Registered
Joined
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28 Posts
Discussion Starter · #3 ·
Does this Help? Fix Windows 10: Installation Failed in the Safe_OS Phase - Technipages

Before attempting to upgrade again, open a Command Prompt as Admin and Copy and Paste or Type the following Bold commands Separately and press Enter

DISM /Online /CLEANUP-IMAGE /RestoreHealth after that completes type

SFC /scannow

After following the instructions in the link above, try upgrading again. If all fails, then backup your files and do a Clean Install of Windows 10
Thanks, I tried adding the commands and also went into BIOS and disabled VT-d (Virtualization). After a couple of tries finally got the upgrade to work.
 
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