How to completely remove Win7's Home Premium (32bits) Service Pack1?

Hello fellows,

My system is in bad shape and I need to do a non-destructive, no reformat of my Win7 Home Premium 32bits.
How do I completely remove the Service Pack1, a step required for the success of this non-destructive operation,
Later on, an update will restore the Service Pack.
Any good help is welcome.

Regards,
Flores

Do you, mean a repair install ( similar to upgrade install) ?

What installation media do you have?

You would be looking for this:

File Name: pt_windows_7_ultimate_with_sp1_x86_dvd_u_677457.iso
Languages: Portuguese-Brazil
SHA1: 95C625D1C6A80CD8F4A188BC8547A436A108EFCE

Eicfg tool will make all editions available eicfg_removal_utility.zip

Win7's non-destructive re-install

....Do you, mean a repair install ( similar to upgrade install) ?

Hello SIW2,

I purchased my DELL laptop with the Win7 Home Premium (32bits) edition already installed, but without the SP1 that was latter added on a Windows Upgrade.
The beauty of this non destructive, no reformat re-install procedure is that you don't loose any of your installed software and created documents, except that all the system files are fully repaired.
My problem now is that I have to completely remove Service Pack 1 as my original Win7 DVD came without this Service Pack.
This I don't know how to do, as this SP1 doesn't even shows up on Control Panel remove programs.
If you are interested on this procedure, look the Internet for Fred Langa's article (it contains these words-"non-destructive re-install"), if still available

Thanks for your help.

Flores