If you are using an older machine for hobbyist reasons, consider:

What are you currently trying to activate? Is this for a personal computer or a business machine ?

Because the loader modifies the boot sector, a "fixed" version that wasn't properly tested can result in a "Black Screen of Death" or prevent Windows from booting entirely.

This guide provides a comprehensive overview of what this software is, how it functions, and the significant risks associated with using unofficial "fixed" versions. What is Windows Loader 2.2.1 by Daz?

If you just need a functional computer for browsing and office work, Linux is free, legal, and much faster on old hardware than Windows 7. Conclusion