Problem installing Java 8

[Dave Horton]

Hi

This is not my solution, I found it on the net.

I had a problem installing Java 8 update. Got two different messages: 
Error 1603 and Key not valid for use in specified state.

I had checked for malware and viruses beforehand and found nothing.

I renamed c:/Users/%username%/Appdata/roaming/Microsoft/crypto/RSA to 
RSAcorrupt and tried installing again. It worked successfully.

Dave Horton