I have been building , computers since 1982 , I have every versions of windows from 3.1 to windows 10 and I am well able to install any operating os and aslo able to see at a glance whats working...

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1. Removal of original built-in tools (E.g. calc.exe).

2. Inability in run multiple copies of 'Modern' apps such as Calculator.

3. Lack of Windows Update settings for us poor people...