Windows 8 Unable to change folder and files permission, neither icalcs nor security tab !!

[aringan]

I am unable to change any permission for any folder . every option that supposed to be available for setting the permission is gray out!! , for some of my files I see the owner is "unable to display the current owner". The problem is the same for every single folder and file. I checked other systems (friends laptops and desktops) and they are working just fine ! but I am just unable to modify any permission for any folder or file !! even I tried to change the owner but it didn't worked !!

I think it happened after a windows update
please help !!
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[nmsuk]

Hi You posted this in 3 different sections of the site. Can you please not do that. I've deleted the duplicates but shall leave this and hopefully you'll get an answer.

 

[aringan]

thank you, I didn't know that . I was in hurry, I though I might get answers sooner if I post in different sections. thank you for letting me have this one