Lenovo T520 specs i7 Quad Core 2.2Ghz with 4GB RAM, when doing a Windows Experience Index (WEI) the score for processor is clocking at only 3.4 out of 7.9.
Ensure you have the following done.
Drivers available via Lenovo Support
If you have all the above done and WEI score still does not increase, do the following step.
how can we improve it?
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