Try disabling some useless things here....
Windows + R (RUN)
Type Msconfig
Go over to services
Hide all Microsoft services
And disable the things you don't need
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or...
Control panel
System and Security
System
And then click on "Advanced system settings" on the left side of the page
Advanced
Performance settings
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Here you can disable the things that make your computer look fabulous, i'm running Windows 8 and i only use 3 options because they or not needed.
Or you could try downloading a cleanup tool such as Advanced System Care or CCleaner.
Advanced System Care will also optimise your internet options.
Hope this kind of helped.