Five years after the release of Windows 11, Windows 10 still holds about 17% of the enterprise PC share. Microsoft has exhausted its tactics; those willing to migrate have already done so, leaving behind a stubborn group that refuses to budge.
Data from enterprise asset management provider Lansweeper, based on scans of real corporate hardware, shows that Windows 10 still accounts for 16.9% of Windows clients, meaning roughly one in every six enterprise PCs is still running Win10.
At the beginning of 2025, this proportion was around 50%. As the October end-of-support deadline approached, it dropped to about 40%, and now, a year later, it has fallen to 17%.Lansweeper refers to this remaining group as the "hardcore" segment, consisting of machines either unsupported by hardware upgrades or users who simply refuse to move.
Of this 17%, approximately 14% have purchased ESU (Extended Security Updates) patches, while another 2% are running without any security protection, not even opting for ESU.
Lansweeper also warned that Windows 10 devices carry an average of 1,903 active CVE vulnerabilities, compared to only 652 for Windows 11—a 2.9x difference that continues to widen with each Patch Tuesday.
Additionally, HP CFO Karen Parkhill recently revealed during an investor conference call that approximately 30% of HP's installed base is still running Windows 10.
Ketan Patel, President of HP's Personal Systems business, views this 30% as a short-term opportunity that will eventually need to be replaced. However, he also acknowledged that the current growth of Windows 11 is driven more by AI PC replacements than by users voluntarily abandoning Win10.