Windows 7: Free for 1 year Windows 7

Even if you are not the official tester of Microsoft, you don't need to look around for the activation key of Windows 7. In addition to the official installation key, we can use other methods. Free use of Windows 7 for a one-year period can at least stick to the official version of Windows 7.

In the initial state, Windows 7 provides a 30-day trial period, but before the 30-day deadline, we can use the "slmgr.vbs -rearm" option to extend the usage period by 30 days. Although the official document states that the order can only be used 3 times, it means that you can experience 120 days in total for free, and you will not be able to use it again afterwards. In fact, as long as you modify a key in the registry, you can reuse the “slmgr.vbs -rearm” command, please open the registry editor, and then navigate to "HKEY_LOCAL_MACHINE\\SOFTWARE\\Microsoft\\Windows NT\\CurrentVersion\\ SoftwareProtectionPlatform”, find the “SkipRearm” in the right pane, and change its key value to “1”, you can use the command of “slmgr.vbs -rearm” again, this key value can be modified 8 times in total That is to say, we can reuse the command of "slmgr.vbs -rearm" for 8 times, and add up and down, which is exactly one year of use.