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Certain retail copies of Windows and Office sold in certain countries classified as emerging markets have geographical activation restrictions, which only allow the user to activate the product within the indicated region. [28] In Windows 7 and later, significant hardware changes (e.g. motherboard) may require a re-activation.
A software license is a legal instrument that governs the usage and distribution of computer software. [1] Often, such licenses are enforced by implementing in the software a product activation or digital rights management (DRM) mechanism, [2] seeking to prevent unauthorized use of the software by issuing a code sequence that must be entered into the application when prompted or stored in its ...
Software cracking contributes to the rise of online piracy where pirated software is distributed to end-users [2] through filesharing sites like BitTorrent, One click hosting (OCH), or via Usenet downloads, or by downloading bundles of the original software with cracks or keygens. [4] Some of these tools are called keygen, patch, loader, or no ...
An early example of product activation was in the MS-DOS program D'Bridge Email System written by Chris Irwin, a commercial network system for BBS users and Fidonet. The program generated a unique serial number which then called the author's BBS via a dialup modem connection. Upon connection, the serial number was validated.
Product key on a Proof of License Certificate of Authenticity for Windows Vista Home Premium. A product key, also known as a software key, serial key or activation key, is a specific software-based key for a computer program. It certifies that the copy of the program is original. Product keys consist of a series of numbers and/or letters.
Microsoft Office 2013 (codenamed Office 15 [6]) is a version of Microsoft Office, a productivity suite for Microsoft Windows. Unlike with Office 2010, no macOS equivalent was released. Microsoft Office 2013 includes extended file format support, user interface updates and support for touch among its new features and is suitable for IA-32 and ...
CCleaner 2.27 and later can wipe the MFT free space of a drive, or the entire drive. CCleaner can uninstall programs or modify the list of programs that execute on startup. [11] Since version 2.19, CCleaner can delete Windows System Restore points. CCleaner can also automatically update installed programs and computer drivers. [12] [13]
One can implement a key generator in a system that aims to generate, distribute, and authenticate [4] keys in a way that without the private key, one cannot access the information in the public end. [5] Examples of key generators include linear-feedback shift registers (LFSR) and the Solitaire (or Pontifex) cipher.