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User asked for software and where to check. &nbsp;The following are all suggestions that could follow on from the akser's testing. &nbsp;These do NOT necessarily lead to a solution but are all possibles that the asker could follow which he asked for.<br />
<br />
dbrunton for suggesting checking Events, new Profile, and virus scan<br />
<br />
John Hurst for suggesting Action Centre and Reliability History<br />
<br />
nobus for suggesting temperature check<br />
<br />
Gerald Connolly for suggesting Task Manager and Resource Monitor
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User says this but no error messages <br />
<br />
I've ran HW diags on memory and HDD etc and all ok <br />
<br />
Software - what to check / where ?
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User says this but no error messages 

I've ran HW diags on memory and HDD etc and all ok 

Software - what to check / where ?

User asked for software and where to check.  The following are all suggestions that could follow on from the akser&#39;s testing.  These do NOT necessarily lead to a solution but are all possibles that the asker could follow which he asked for.

dbrunton for suggesting checking Events, new Profile, and virus scan

John Hurst for suggesting Action Centre and Reliability History

nobus for suggesting temperature check

Gerald Connolly for suggesting Task Manager and Resource Monitor

PC hangs and crashes in win 7

User says this but no error messages 

I&#39;ve ran HW diags on memory and HDD etc and all ok 

Software - what to check / where ?

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.