How can I install Windows 11 on unsupported Dell laptop?

You're right — your Dell XPS 15 9560 with those specs is actually pretty solid, and it’s a shame that the upgrade path to Windows 11 isn’t straightforward. Here’s a straightforward approach to bypass the system requirements check and get Windows 11 running on your unsupported laptop.

How to Install Windows 11 on Unsupported Dell Laptop
1. Head over to Microsoft Windows 11 download page to download the ISO file.
2. You can use the built-in Media Creation Tool:

• Download the ISO.
• Mount the ISO (double-click it) or use the "Burn" feature to create boot media.
• Alternatively, use Windows Explorer: right-click the ISO and select "Mount," then copy all files to a USB stick formatted as FAT32 or NTFS.

3. This is the key step. You need to edit the installer to skip the "This PC doesn’t meet requirements" check. You can do this by editing the appraiserres.dll file or by adding a registry key during setup.
Simpler approach:  

• Use a bootable USB with the installer files.
• When you start the installation, press Shift + F10 at the language selection screen to open Command Prompt.
• Type regedit and press Enter to open the Registry Editor.
• Navigate to HKEY_LOCAL_MACHINE\SYSTEM\Setup\MoSetup.
• Create a new DWORD (32-bit) value named AllowUpgradesWithUnsupportedTPMOrCPU and set it to 1.
  Close regedit, then continue with the installation.

Alternatively, for a more straightforward bypass:

• Download Windows 11 ISO.
• Extract the ISO contents (right-click and choose "Extract" or use 7-Zip).
• Locate the sources folder.
• Find the file appraiserres.dll inside the sources folder.
• Rename or delete appraiserres.dll (this file enforces hardware checks).
• Re-create the ISO with this modified folder (using DISM or ISO editing tools) or copy the files directly to the USB drive.

Note: Some guides recommend editing the registry directly during setup or using scripts, but the above method (removing appraiserres.dll) is common for bypassing the TPM and CPU checks.

4. Start the Installation

• Boot from the modified USB drive.
• Follow the prompts.
• When the installer runs and the hardware check is bypassed, you should be able to proceed with the install.

5. Post-installation

• After you install Windows 11 on unsupported Dell laptop, check Device Manager for missing drivers.
• Download and install drivers from Dell’s support site for your XPS 15 9560.
• Make sure Secure Boot and TPM are enabled in BIOS for full Windows 11 features, but even if they’re off, Windows 11 can run (though some features might be limited).