How to install windows 11 on old hp laptop without usb?

Upgrade Using the Windows 11 ISO + Registry Bypass is a method that allows you to install Windows 11 on older hardware without creating a USB drive. It is best suited for users with unsupported CPUs who want to upgrade directly from Windows 10. As a practical solution for How to install Windows 11 on old HP laptop without USB, this approach mounts the ISO directly and uses a registry modification to bypass TPM 2.0 and CPU checks.

How to Install Windows 11 on Old HP Laptop Without USB

Step 1: Download the Windows 11 ISO File

• Go to the official Microsoft Windows 11 download page.
• Under Download Windows 11 disk image, select Windows 11.
• Select your language, then click Download.
• Save the ISO file to your Downloads folder.

Step 2: Mount the ISO File

• Navigate to your Downloads folder.
• Double-click the Windows 11 ISO file. It will automatically mount as a virtual DVD drive.

Step 3: Apply the Registry Workaround

• Press the Windows key + R, type regedit, and then press Enter.
• Navigate to:

HKEY_LOCAL_MACHINE\SYSTEM\Setup\MoSetup

• In the right pane, right-click → New → DWORD Value
• Name it:

AllowUpgradesWithUnsupportedTPMOrCPU

• Double-click the entry and set the value to 1.
• Click OK and close the Registry Editor.

Step 4: Run the Windows 11 Setup Program

• Open File Explorer → Go to This PC
• Double-click the mounted Windows 11 ISO file
• Double-click setup.exe to begin the installation.
• When the system asks, Do you want to download updates now?, select Download later.
• Select Keep personal files and apps to preserve your data.
• Click Next. The installer will check for compatibility and issue warnings about unsupported hardware. Click Accept to continue.

The installation begins.

• Do not shut down your computer—it will restart several times.
• Finally, complete the Windows 11 installation
• Once the installation is complete, sign in with your Microsoft account or create a local account
• Follow the on-screen prompts to complete your privacy settings.

This way, you don't need to use a USB flash drive. The registry workaround is the key step that makes it possible to install Windows 11 on an older HP laptop without a USB drive—otherwise, the device would fail the compatibility check.