Microsoft provides generic "KMS client" keys that allow you to install the operating system, though they will not permanently activate it without a connection to a valid license server: : FJ82H-XT6RQ-V4QJJ-JPHPV-W9VTY Windows 7 Enterprise : 33PXH-7Y6KF-2VJC9-XBBR8-HVTHH Common Key Lists
If Windows 7 was pre-installed on your computer, you may already have a valid key available through the following methods: Windows-7-Product-Key-Generator-Free-Download--32-64-bit-
If you need more time to activate, you can reset the 30-day grace period (up to three times) using the "rearm" command: Click the button and type cmd . Right-click Command Prompt and select Run as Administrator . Type slmgr -rearm and press Enter . Restart your computer to apply the extension. Generic Installation Keys Microsoft provides generic "KMS client" keys that allow
Additional lists can be found on community gists like GitHub Gist or specialized document sites like Scribd . Restart your computer to apply the extension