#5 Windows Defender Not Evolved To Compete With Dedicated Security Software Suit:

This for sure offers basic degree of security; Windows Defender is still miles away to be in shoulder with dedicated security software suit. It still doesn’t integrate with Windows Firewall to provide a unified interface for the integrated security software. You yet have to spare few bucks on security software if you don’t like your PC becoming vulnerable to malwares.

#4 Microsoft account is required:

Windows 8 can open up for you through two methods; either you use a local account, or a Microsoft account. However the later option is more credible than prior if you want to get access to full Windows 8 functionality. There’s no other way left than signing up for Microsoft account whether you like it or not, for the Windows Store only works with Microsoft account.    

#3 Multiple Monitor Support:

This feature isn’t for every Windows user. It sees limited applicability for not only being a user specific feature but also for the hardware requirement. Having to separate the Windows 8 UI on to two separate monitors when one can easily do well with old desktop seems not a sensible option.

The similar function is also available in old OS, and is as good as new one if you really want to use two separate interfaces.