Windows 8: Enter Product Key

If you install Windows 8 and you can't activate it, possibly your product key is incorrect. In this case you need to enter a new product key. But how? At least on the Windows 8 Preview edition I installed in August 2012 it was not obvious.


Solution
After some searching on the web I found and tried this solution, it works!

1. On the Start screen right click on the background
2. Click All Apps (bottom right)
3. Right click on Command Prompt
4. Click Run as Administrator
5. At the C:\Windows\System32\> prompt type:  slui 3   [Enter]
6. Wait a moment and a window will prompt you to enter your Product Key.

Reference
http://www.windows7hacker.com/index.php/2012/08/how-to-change-windows-8-product-key-to-complete-activation/

IBM Cognos 10: DPR-ERR-2107

When starting IBM Cognos 10, before the login prompt, the following error appears:
DPR-ERR-2107
The User Capabilities Cache cookie cannot be decoded.


Solution
With two Cognos systems that you run one after the other, this error can occur. Close your browser in between running separate Congos'.

For example, if you have a production Cognos and a development Cognos, you run the development edition, then you open a new tab and run the production edition - it will give you this error. Close the browser completely, reopen it and try again, it will be fine.