However, PIRG says Microsoft's ESU program for Windows 10 isn't a "viable solution" for the 400 million PCs that can't upgrade to Windows 11. In August, multiple users raised concerns about the ESU program not being available for them despite the fact that Windows 10's death is edging closer. Microsoft offers trade-in and recycling to address Windows 10 e-waste concernsYou can trade-in or recycle your old Windows 10 PC to help address the rising e-waste concerns. (Image credit: Zac Bowden | Windows Central)HP and Dell recently indicated that half of the PCs globally are still running Windows 10. Some might enroll in Microsoft's ESU program, while others ditch the ecosystem entirely for other operating systems like Linux or even ChromeOS.