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Windows 7: Difference in Space used with Win 7 update in two computers

11 Mar 2015   #1

Microsoft Windows 7 Professional 64-bit 7601 Multiprocessor Free Service Pack 1
Difference in Space used with Win 7 update in two computers

One of the machines with Win 7 Pro the other with Win 7 Home premium, after updating both machines with same amount of files (regarding the space they represent, in this case: 268 MB) the Pro signaling substantially more space used than the other one with Home, which is not significant (no change signaled in HD properties).
What is the explanation for this?
Thank you

My System SpecsSystem Spec
11 Mar 2015   #2

Microsoft Community Contributor Award Recipient

Win 7 x64 Home Premium (and x86 VirtualBox VM)/Win10

There are any number of reasons why two similar computers may have differing update 'sizes' - they include.
1) different hardware versions - leading to different required updates
2) different update paths - leading to differing required histories for updates.

Generally, if two machines with identical hardware and preinstalled software are run from the same date to current, within 24 hours of first boot they will have noticeably different registries, and within a month could well have markedly different update requirements.
Often, Pro and Home Premium machines even from the same manufacturer will have different software pre-installed.

Unless you discover that updates are failing for some reason, then there is no reason to worry.
My System SpecsSystem Spec

 Difference in Space used with Win 7 update in two computers

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