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.Net framework 4<br />
<br />
Blocking Issues:<br />
<br />
Setup cannot continue because a previous installation requires your computer to be restarted. <br />
Please restart your computer and rerun Setup.
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.Net framework 4

Blocking Issues:

Setup cannot continue because a previous installation requires your computer to be restarted. 
Please restart your computer and rerun Setup.

even when I restart my pc I still get this error.

Windows 7 is an operating system from Microsoft. Features include multi-touch support, a redesigned Windows Shell with a new taskbar, referred to as the Superbar, a home networking system called HomeGroup, and performance improvements.