My Experience with upgrading of Windows 8 Pro to it's 8.1

I am using a Lenovo Thinkpad T440p with Windows 8 Pro stock installation, well-I inserted the recovery disks and re-format the system when I first got it from the suppliers.

Unfortunately, it didn't come pre-loaded with Windows 8.1, so I had to install this later on.

I followed the upgrade pre-requisites instructions and tried to ensure there will be no issues faced when running the upgrade. Unfortunately, I was wrong.

The issues faced that the Upgrade Check found were:

1. Itunes requires me to de-list my authorization for the iphone - which I did.
2. I can't bring forward the Quicktime player, which means I'd have to re-install it later on.

The Issues that I faced after the upgrade which the check failed to see, however:

1. Virtual Box 4.3.6 was unable to run properly due to network adapter problems
2. Fences 2.01 was unable to run properly - I can't move any icons on the desktop
1. solution: Download the latest version of Fences 2.12, and re-install.
2. Restart PC and solve the issue
3. I got this inspiration from here

These are 2 of issues I've faced thus far. I hope no additional problems though.