Microsoft has decided to push even harder in its bid to have everyone upgrade to Windows 10.
In the lead-up to Windows 10's release many users were bombarded with messages encouraging them to upgrade.
Now, the company says it will "soon" be pushing Windows 10 as an "optional update" for all Windows 7 and Windows 8.1 users.
And early next year, it plans to make Windows 10 a "recommended upgrade".
"Depending upon your Windows Update settings, this may cause the upgrade process to automatically initiate on your device," Microsoft executive vice-president Terry Myerson said in a blog post.
"Before the upgrade changes the OS of your device, you will be clearly prompted to choose whether or not to continue."
Anyone who chooses to proceed with the upgrade will be able to roll it back within 31 days if they're not happy with Windows 10.
Microsoft is also looking at ways of getting software pirates on board.
"If you try and upgrade a non-genuine PC to Windows 10 today it says the free upgrade is only available to genuine PCs," Mr Myerson told The Verge.
"We're seeing people be creative to get around that block, and then many are actually going to the Windows Store and buying a genuine license."
Pirates in the US will be offered a one-click way to get a licence, allowing them to upgrade - but it won't be free.
If the one-click programme proves successful in the US, it will be expanded elsewhere.
Microsoft said earlier this year it hoped to have 1 billion devices running Windows 10 within two or three years of its release.
