Installation error: key not valid for use in specified state

During a recent installation I ran across a strange error: Key not valid for use in specified state. After much searching on the almighty Google I found that this issue can be caused by a corrupt Microsoft Crypto Folder. In order to correct this issue the folder must be renamed and then the software can be successfully installed: 



First Navigate to C:\Users\\AppData\Roaming\Microsoft. (NOTE: AppData is a hidden folder so you may need to show hidden files and folders if you do not see that folder.) 

Copy the Crypto folder to Another location (Just in case it might be needed later) and then Delete the original "Crypto" folder.

Once the folder has been deleted try installing the software again. The crypto folder appears to act as a cache and should be rebuilt automatically as required. 

If this method does not help, run the System File checker (SFC) scan and then download and run the installer again. SFC will replace any corrupted system files with the original Windows versions.

 To run SFC scan first open a command window as administrator. This can be done by finding the cmd.exe launcher and then right clicking and selecting "run as administrator".

When prompted if you would like to allow the following program to make changes select Yes. 

From the cmd.exe window type in "sfc /scannow" and hit enter. 

This scan will run through your system and replace or repair any corrupted or missing Windows files. After this scan your installation should continue unmolested.