If you are using a volume license version of Windows 8 Pro provided by your employer, it is likely using KMS licensing which requires reactivation every 180 days (6 months). This requires that you reconnect to the KMS Host at your work place by either logging on to the Domain or VPN to reactivate the license. If you continue to experience further problems, try contacting your IT department for assistance. El quijote dela mancha editorial zig zag pdf to excel.

A serial number is a unique, identifying number or group of numbers and letters assigned to an individual piece of hardware or software. Other things have serial numbers as well, though, including banknotes and other similar documents. Cannot Activate Windows 8 Using Already Owned Legal Serial Key on New PC If you have clean Installed Windows 8 on a new PC then activation might be a troublesome job. This case arises for two reasons when you are trying to activate Windows 8 on a new PC, using a key that you already used on other PC earlier.

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Causes: There are several reasons this message may appear during an activation, including: • The serial number is for a network license rather than a stand-alone license. • The serial number does not match the media (or product key) used either during installation or during initial activation of the product. • The serial number has been upgraded to a new release. (Active subscription contracts have previous version benefits, so this does not apply to them.) • The product has been upgraded to a different product. (This can also happen if you have an active subscription contract. Please check the previous version eligibility list.) • The product has been returned through a reseller or the online store. • The subscription license has lapsed or been canceled.

• The serial number is not registered. Serial number does not match media or initial activation information You may get an “Invalid serial number” error if the serial number used for activation does not match the media used for installation. Common examples include: • AutoCAD 2016 installed using the Building Design Suite 2016 installer, but you are attempting to activate/re-activate it using the AutoCAD 2016 serial number • AutoCAD LT 2016 activated using the AutoCAD LT 2016 serial number, but you are attempting to re-activate it using the Inventor LT Suite 2016 serial number • AutoCAD 2017 activated using the Building Design Suite 2017 serial number, but you are attempting to re-activate it using the Architecture, Engineering and Construction Collection serial number.

Solution: To avoid this error, use one of the following: • The serial number that matches the product media (or product key) used during installation, or • The serial number that matches the product key used during initial activation. If neither option is possible (e.g. Subscription has expired), then uninstall and reinstall the product using the product media (or product key) that matches your new subscription. Note: For industry collection users If you switched* an active individual product or suite subscription to an industry collection subscription, there is no need to update the serial number for already installed and activated products. Attempting to do so may result in the “invalid serial number” error. To ensure continued access for your users, be sure to assign the user to the new subscription in Autodesk Account. However, if your suite subscription expired prior to starting a new industry collection subscription, then you will have to the product from the individual product installer.