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Windows 7: Why does transfer of large files slow down computer so much

16 Aug 2012   #11
Microsoft MVP


This shouldn't happen in Win7 with optimized Clean install, no freeloaders at Startup.

If you have the perfect, optimized install in Clean Reinstall - Factory OEM Windows 7 then test your RAM - Test with Memtest86+ for 5-6 passes as well as all other steps in Troubleshooting Steps for Windows 7.

I would not settle for any performance hangs or bogs at all and would find the cause.

My System SpecsSystem Spec
17 Aug 2012   #12

Windows 7 Ultimate 64bit

I had to free up some space on a drive so I am currently moving 195GB to another drive, and downloading/un-rar'ing some stuff to the same drive I am moving from.
I was just in Photoshop CS6 as well cropping the image I've attached.

Attached Thumbnails
Why does transfer of large files slow down computer so much-copy.jpg  
My System SpecsSystem Spec
10 Dec 2013   #13

Windows 7 Professional 64 bit

I'm moving 70GB from an NAS to a VHD on the Server and my PC has been unusable all day! All 8 of my Cores are thrashing at nearly 100%! It's taken me 15 minutes to type this post, as every second letter doesn't appear, so I have to retype every word! When even a core process like typing is affected, there is something fundamentally wrong! It's a disgrace that Microsoft can't get something as simple as copy/paste right after 30 years in the business! I hate OSX, but I wonder whether this would happen on a Mac?
Appalling programming on Microsoft's part! Why is my PC even being used? Why isn't the File Transfer being handled by the Server?
My System SpecsSystem Spec

14 Dec 2013   #14

Windows 7

I don't get any slowdowns on a 5yr old C2Duo 4Gb home build. You have a problem that needs sorting.
My System SpecsSystem Spec
14 Dec 2013   #15
Microsoft MVP


Did you compare the install you have to the optimized perfect install I linked earlier, then work through the Troubleshooting Steps for Windows 7

Don't blame MS as file copying problems are not an issue with this OS at all. The problem lies somewhere within your system, either the hardware or the Win7 install.
My System SpecsSystem Spec

 Why does transfer of large files slow down computer so much

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