NTFS ownership and reinstalling Win7

[sapsa]

Hey,
After changing Win7 x64 to x86 (and few problems i had)
I encounter on problem with ownershiping the folders/files because
they were created on old w7 with different account that don't exist anymore

I can change the ownership by right click, properties ... and can add permission to full control
it's not a big problem but I want to not encounter it in future - how to avoid it?

[NaRu]

I have to ask why did you went back to 32bit from 64bit

[sapsa]

I was hoping no one will ask before the real help, but... i use few things that dont work on x64, and I dont need x64 for my 2core, 2Gig Ram - and i wont upgrade anything in few months for sure.

[NaRu]

Did you do a clean install of Windows 32bit?

[sapsa]

Yes. Format C. Fresh Win7.

[x5ga]

ugh, ownership problems... I had these too I think it's because the different users/groups are identified by GUID. Once you reinstall the OS, your new user will be assigned another GUID (randomly). Also, the OS has no way of knowing whose username corresponds to the old files owner (if you look at the permissions you'll only see the GUID, {42ECAF20-334A-1069-A2DD-18232FAF309F} or something similar) because the old users aren't stored anywhere anymore. So even if you name your new user the same way you named your user in the previous OS, the OS has no way of knowing that. I have no idea if I made any sense with my explanation.

TL;DR version: I think you can solve this problem by setting "Administrators" as the owner and deleting everything else listed there that isn't a default user account/group.

[sapsa]

yah, your explanation had sense i know about that, but if i set the ownership on "administators" it will be diffrent GUID than "administrators" on other OS, wouldnt it ? so the problem will be the same - if i remamber correct groups and users are identificated by the random name (like the GUID you mention). So setting them on group or user wont help it. I didn't have those problems before using w7 so its strictly linked to w7/vista.

But thanks for your replay

ps: is "administrators" is function that return list of admin accounts they this will help.