How to solve the error code 0x800f0926: Installation failed due to insufficient disk space in Windows 11

If you are receiving the error code 0x800f0926 while trying to install Windows 11, it means that there is not enough disk space available on your computer to complete the installation. Here are some steps you can take to solve this issue:

1. Free up disk space: Delete any unnecessary files or programs from your computer to free up disk space. You can use the Disk Cleanup tool to remove temporary files, system files, and other unnecessary files.
2. Move files to an external drive: If you have important files that you don't want to delete, you can move them to an external drive or cloud storage service to free up space on your computer.
3. Disable hibernation: Hibernation creates a large file on your hard drive that can take up a lot of space. You can disable hibernation by opening the Command Prompt as an administrator and typing "powercfg -h off" (without quotes) and pressing Enter.
4. Disable system restore: System restore creates restore points that can take up a lot of space. You can disable system restore by right-clicking on My Computer, selecting Properties, clicking on System Protection, and then clicking on Configure. From there, you can turn off system restore.
5. Use a disk cleanup tool: There are many third-party disk cleanup tools available that can help you free up disk space on your computer. Some popular options include CCleaner, Disk Cleanup Pro, and CleanMyPC.

Once you have freed up enough disk space, try installing Windows 11 again.