KMSPico is the most perfect KMS (Key Management Service) activation method (since Vista) based universal automatic activator, which supports for all editions of Microsoft Office & Windows (such as Windows 7/8/8.1/10; Office 2010, 2013, 365, 2016; Windows Server 2008/2012/R2/2016...). All you have to do is just one click to activate.

Microsoft Activation Scripts (MAS for short) is a short but sharp open-source KMS scripts collection for online/offline activation of Microsoft Windows and Office, and friendly to all kinds of antivirus software without being easily misidentified as malware. In this collection, the Digital License can achieve a permanent activation of Windows 10; KMS38 is able to activate Windows 10/Server until 2038; for Online KMS, the activation period for Windows/Server/Office is 180 days.

KMSAuto Lite is the latest one up-to-date very powerful Microsoft Windows and Office one-click offline activation tool (KMS-activator), supports all VL (volume licensing) and RTM editions in any language (both 32-bit and 64-bit). Made by Ratiborus and Evgeny972 from Russia.

Windows 10 began to introduce a new way of legal authorization - digital license activation. Its most obvious feature is that it does not need the traditional product keys or activation codes. Instead, it uniquely identifies a user by recording and comparing the hardware information (HWID) of the user's current computer, thereby is able to automatically reactivate Windows 10 after reinstalling system in the future. The advantage is obvious: the user does not have to remember his Windows product key or activation code any more; and as long as your hardware is unchanged, you can always quickly, automatically and permanently reactivate your Windows 10 with ease.

Windows Loader (AKA: Windows 7 Loader By Daz, Windows 7 Activator) is a very popular and perfect (due to its pretty high success rate, good stability and strong ability to correct mistakes) universal activator for full series of and all editions of Windows Vista/7/2008 (R2)/2012 (R2) (including both 32-bit and 64-bit and all languages), developed and maintained by Daz from My Digital Life forum. Additionally, it also supported simulating specific computer brands to perform system activation.