Copying over network and to USB hard disc slows down WinOS handling dramatically


Extraordinary Member
When I copy huge archive files (more than 10 GB) over network or to an external USB hard disc then the Win7 handling slows down dramatically.

I can hardly work on other programs like Word, Windows Explorer, Firefox,...
Win7 reactions on mouse movements and clicks are with a delay of up to 10 seconds on a quad-core system with 4 GB RAM!!

Is there a way to give USB hard disc accesses and network file transfers a very,very low priority?

Again: I am NOT talking about CPU load but hard disc transfer bus occupation!


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