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System Locked Pre-installation (SLP), also referred to as OEM Activation, is a product activation procedure for Microsoft Windows used by major OEMs of laptops and pre-built PCs wherein a Windows product key is added and locked to the machine's firmware before mass distribution. SLP product keys cannot be moved to other machines.
On Windows 10 and Windows 11, the activation process can also generate a "digital entitlement", which allows the operating system's hardware and license status to be saved to the activation servers, so that the operating system's license can automatically be restored after a clean installation without the need to enter a product key.
Windows 95 retail product keys take the form XXX-XXXXXXX. [2] To determine whether the key is valid, Windows 95 performs the following checks: The first 3 characters must not be equal to 333, 444, 555, 666, 777, 888 or 999. The last 7 characters must all be numbers from 0-8. The sum of the last 7 numbers must be divisible by 7 with no remainder.
Acer US has a Windows refund program where a user can ship a computer with an unused copy of Windows to the Acer service center and have the computer returned without Windows for a refund. [32] Acer's policy requires the customer to return items at their own expense, and the balance received by the customer can be as low as €30. [ 33 ]
A product key is required to proceed and use Windows 95. In one form, product activation refers to a method invented by Ric Richardson and patented (U.S. patent 5,490,216) by Uniloc where a software application hashes hardware serial numbers and an ID number specific to the product's license (a product key) to
A volume license key that was commonly used to bypass product activation in early versions of Windows XP was FCKGW-RHQQ2-YXRKT-8TG6W-2B7Q8. [8] This key was part of the first warez release of the final version of Windows XP by a group called devils0wn , 35 days before the operating system's official retail release on 28 August 2001. [ 9 ]
The true severity and scope of the problem remain an enduring mystery of the free market, as national chains eagerly point to retail theft as a key drag on profits, but are reticent to publicly ...
The region code is stored in a file or the registry, and there are hacks to reset the region counter of the player software. In stand-alone players, the region code is part of the firmware. For bypassing region codes, there are software and multi-regional players available.