MS support is requesting update to drivers and configure BIOS b4 Windows 11 2025H2 installation

[DMWJaxon]

Windows 11 2025H2 could not be installed.   0xC1900101 - 0x20017 error. 

The installation failed in the SAFE_OS phase with an error during BOOT operation. 

[VikramTheGreat · Accepted solution]

Hi @DMWJaxon,

Welcome to the HP Support Community.
 

Thank you for posting your query. I will be glad to help you.

I know how frustrating it is when you're excited to upgrade to Windows 11 2025 H2, only to be stopped by a cryptic error like: 0xC1900101 - 0x20017. The installation failed in the SAFE_OS phase with an error during the BOOT operation.

This error typically points to driver conflicts or boot configuration issues, especially on HP notebooks. Let’s walk through the steps to resolve it.

Fix: Windows 11 2025 H2 Installation Error 0xC1900101 - 0x20017

1. Update BIOS and Drivers Before Upgrade

HP strongly recommends updating your system BIOS and essential drivers before installing major Windows updates.

• Visit the Official HP® Support page.
• Enter your notebook model (e.g., HP Notebook 15-dwxxxx).
• Download and install: 
  • Latest BIOS update
  • Chipset drivers
  • Storage drivers
  • Intel Management Engine Interface

🔗 HP Support for Windows 11 & Windows 10: How to Upgrade & Fix Problems

2. Disconnect All External Devices

Before upgrading:

• Remove all USB drives, printers, external monitors, and accessories.
• This prevents driver conflicts during the SAFE_OS phase.

3. Disable or Uninstall Antivirus Software

Third-party antivirus tools can interfere with boot operations during setup.

• Temporarily disable or uninstall them before retrying the upgrade.

4. Free Up Disk Space

Ensure at least 25–30 GB of free space on your system drive.

• Use Disk Cleanup or Storage Sense to remove temporary files and old updates.

5. Run HP’s Operating System Check Tool

HP offers a tool to scan and optimize your system before upgrades:

🔗 Fix HP Computer and Laptop Operating System Not Found Issues | HP® Support

I hope this helps.

Take care and have an amazing day!
 

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Regards,

VikramTheGreat