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I thought I can open a file that I checked with 360virus and kaspersky


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#1 stnchs

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Posted 21 May 2017 - 07:07 PM

Hello,

In a nutshell: 
​After finding (with tcp view) internet connections being made from folders in WindowsApps I have tried to reinstall the computer (just to be on the safe side and since I didn't yet have to many things on it), but the laptop didn't even allow me to: "there was some problem restoring your computer, no changes were made"

​So I "un-compressed" the drive, but I was never able to do a system restore. So I made a bootable usb stick (with the Microsoft tool) and reinstalled Windows. While doing the new installation this I clicked on "format the partition" but I don't think it did it (it only lasted a couple seconds for the 300GB). Anyway now it seems I have Win10 brand new installed - but these Windows Apps folders are still there. 

Because I still don't know if I'm safe I want at least these files to go away ​that caused me some much trouble I went to elevated or administrator command prompt, I put it "net user Administrator /active:yes" what should unhide the admin account. Needless to say (probably) I can't still delete the folders, even with elevated command prompt.

But now I can try to change permissions on the security tab again on these dreaded folders I hope - I looked into it - but it still doesn't seem possible. 

It's my drive, how come I do not have access? Am I soo naïve?
​Any help would be appreciated, thank you !!!

 

 

Long form:

Stupid me thought that I can open a file that I checked with 360virus and Kaspersky (yesterday)​, however two days ago
I noticed my computers internet connection becoming super slow. After I stopped all internet activity, closed the browser
​still there was a lot of wifi activity in the task manager visible, so I feared there is something going on.

​I checked with TCPview and found at least one program establishing connection(s) that I didn't know. The files location is:
C:\Program Files\WindowsApps\Facebook.Facebook_92.883.20503.0_x86__8xx8rvfyw5nnt 
​While having an account I do not knowingly have anything from FB installed on my computer, so I shut down the connections and ended the process.

​I also checked the folders and files security tab and found an unknown user having full control to these folders and files =>
Account Unknown(S-1-15-3-1024-3635283841-2530182609-996808640-1887759898-3848208603-3313616867-983405619-2501854204)
​If I tried to change permissions I get: unable to save permission changes on Logo.scale-100.png, the media is write protected.

​With a lot of trying with inherited permissions I managed to delete some permissions but eventually I failed.
Today for the first time ever I got a blue screen while burning my files to a dvd.  After that if I tried to open google.com with Firefox, it didn't work anymore. Allegedly google has set his security settings for https wrong ...blah? Restarting and it works again.  It convinced me even more that sth was going on.

​I tried to scan the folders with two different antivirus software. The (I believe) 360total virusscanner didn't even scan it, Kaspersky scanned it but couldn't find anything wrong. ​TDSSKiller also didn't find anything wrong. Please help - I found other theads dealing with parts of what I describe above, so please what, if anything, is going on.

(please your best guess!?)


Edited by stnchs, 22 May 2017 - 11:32 AM.


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