CGSeni.jpg' alt='Win 10 Activation Key' title='Win 10 Activation Key' />Windows 8. Product Key and Activation. About a week ago, I downloaded Windows 8. MS Store. This was an upgrade for Windows 8 which came installed on my new HP PC. The download was successful and Win 8. However, Win 8. 1 did not get activated and I keep getting a reminder screen to Activate Win 8. This Activate Screen asks me to enter a Product Key. It gives me an error code of 0xc. City Car Driving 2.2 7 Full Crack there. It also gives the last five5 characters of the blocked product key. Ashampoo Dvd Theme Pack 1 200. Well, I never entered a product key during the upgrade so Im not sure where the product key came from. I did a web search for the last five characters of the product key and it appears to be all over the web. I used an application that showed the last fifteen1. PC for Win 8. 1 and they match the product key that I found all over the web. Its no wonder that MS has blocked this key. My question is. How do I activate Windows 8. Compressibility Of Sandstones Pdf. I have no product key. MS Store did not provide a key with the download. Dennis J. Ferrier. Electronic/image/2016/03/30/1459317563939510.jpg' alt='Win 10 Activation Key' title='Win 10 Activation Key' />Heres everything you need to know about how to find your Windows 10 product key and how activation works on free upgraded versus new retail copies of Windows. Bought it from Retail ABC for a new PC build. They emailed me the activation key with a link to download Windows 10 onto a USB stick. I was a bit dubious because of. Learn more about activation in Windows 10, including how a digital license works and when you need a product key. Also, be warned that Microsoft does keep track of how your activation key is used. They will take notice if youre calling into their hotline once a week to.