Microsoft no longer sells Windows 7 keys, but if you have an old (sticker on your PC or a COA card), you can still install Windows 7 SP1 and activate it over the phone using Microsoft's automated system. The phone activation servers remain online for legacy customers.
If you find a text file on a sketchy Russian forum labeled Windows_7_Eternity_2009_Key.txt , you are likely downloading one of four things: windows 7 eternity 2009 product key
: Microsoft ended all support for Windows 7 in January 2020. Running any version of Windows 7 today, especially a modified one, leaves your system vulnerable to modern security threats. safely upgrade from an older OS to a supported version of Windows? Windows 7 Eternity Review 20 Feb 2010 — Microsoft no longer sells Windows 7 keys, but
Using a bootleg OS like Eternity 2009 carries significant risks: Running any version of Windows 7 today, especially