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[Q] Full access to WindowsApps under Windows RT 8.1

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bartekxyz
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Question [Q] Full access to WindowsApps under Windows RT 8.1

Hi folks, I've never tried editing anything in WindowsApps under Windows RT 8.0 but now when I use version 8.1 I feel like playing with modern apps. From what I read in Windows 8 it was(is?) possible to fully access it by taking ownership of that folder. I did the same, changed owner from trustedinstaller to my user account and while under permissions it looks like my user has full access to all files I still can't edit anything, only read, execute and delete, no write. Is it possible to edit anything in WindowsApps under RT 8.1 or was it blocked since RT 8.0 or in both Windows RT and 8 and I just misread something?
 
GoodDayToDie
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Taking ownership allows you to edit the permissions. Editing the permissions enables adding the Write (or Full Control) permissions.
Win8/Windows RT projects:
List of desktop apps for hacked RT devices

WP8 projects:
Native Access WebServer and Libraries
WP8 Interop Unlocks
Storage Cleanup tool

WP7 projects:
XapHandler, Root Webserver, OEM Marketplace XAPs, Bookmarklets collection (Find On Page), Interop-unlock hacks.


Do not private message me with questions that should have been posted on the forum! Not only are you wasting your time - I'm not going to bother writing an answer to such a question for only one person - but I will probably block you from PMing me in the future as well.
 
bartekxyz
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Originally Posted by GoodDayToDie View Post
Taking ownership allows you to edit the permissions. Editing the permissions enables adding the Write (or Full Control) permissions.
"under permissions it looks like my user has full access" - I've enabled full contol already and still I can't write anything, that's why I made this thread, to ask if it's possible at all.
 
GoodDayToDie
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Did you enable it for subfolders, etc.? Can you create a new folder directly under WindowsApps? Have you applied the permissions change yet?
Win8/Windows RT projects:
List of desktop apps for hacked RT devices

WP8 projects:
Native Access WebServer and Libraries
WP8 Interop Unlocks
Storage Cleanup tool

WP7 projects:
XapHandler, Root Webserver, OEM Marketplace XAPs, Bookmarklets collection (Find On Page), Interop-unlock hacks.


Do not private message me with questions that should have been posted on the forum! Not only are you wasting your time - I'm not going to bother writing an answer to such a question for only one person - but I will probably block you from PMing me in the future as well.
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bartekxyz
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Quote:
Originally Posted by GoodDayToDie View Post
Did you enable it for subfolders, etc.? Can you create a new folder directly under WindowsApps? Have you applied the permissions change yet?
Yep, I've enabled it for subfolders, gave full access to all users, unticked read only flags, changed owner... i've tried everything I could. And yes, I can create a new folder directly in windowsapps but not in applications subfolders where I can't perform any modifications except deleting.
 
GoodDayToDie
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I'm not currently using RT 8.1, but something is off, here. You're sure you have privileges on the subfolders (individual app folders), not just the WindowsApps folder? Each one has their own permissions.
Win8/Windows RT projects:
List of desktop apps for hacked RT devices

WP8 projects:
Native Access WebServer and Libraries
WP8 Interop Unlocks
Storage Cleanup tool

WP7 projects:
XapHandler, Root Webserver, OEM Marketplace XAPs, Bookmarklets collection (Find On Page), Interop-unlock hacks.


Do not private message me with questions that should have been posted on the forum! Not only are you wasting your time - I'm not going to bother writing an answer to such a question for only one person - but I will probably block you from PMing me in the future as well.
 
bartekxyz
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Quote:
Originally Posted by GoodDayToDie View Post
I'm not currently using RT 8.1, but something is off, here. You're sure you have privileges on the subfolders (individual app folders), not just the WindowsApps folder? Each one has their own permissions.
Yes, I'm 100% sure that I have full control set for all subfolders. Strange thing is that I tried some random files in random app folders and some files are writeable and some are not, even in one folder. I think that MS did it on purpose to prevent users from modifying/cracking apps. All I wanted to do was to edit one xml file in Asphalt 7 folder to enable some graphical enhancements that are disabled for Windows RT and are stored in this xml as presets but no matter what I do I can't edit this file and believe me, I tried everything.
 
GoodDayToDie
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There are things I'm sure you could do - for example, opening a file or folder with FILE_FLAG_BACKUP_SEMANTICS lets you completely bypass ACLs, assuming you have the SE_BACKUP permissions (Administrators and other members of the "Backup Operators" security group).

One other possibility, that in fact sounds quite likely from your description: are you sure that the apps aren't *running* in the background? 8.1 makes apps suspend, not close, by default even if you do the swipe-to-bottom-of-screen gesture. Obviously, if the files are locked, you won't be able to edit them. That should give you a different error, but you never actually said what error you're getting.
Win8/Windows RT projects:
List of desktop apps for hacked RT devices

WP8 projects:
Native Access WebServer and Libraries
WP8 Interop Unlocks
Storage Cleanup tool

WP7 projects:
XapHandler, Root Webserver, OEM Marketplace XAPs, Bookmarklets collection (Find On Page), Interop-unlock hacks.


Do not private message me with questions that should have been posted on the forum! Not only are you wasting your time - I'm not going to bother writing an answer to such a question for only one person - but I will probably block you from PMing me in the future as well.
 
bartekxyz
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Quote:
Originally Posted by GoodDayToDie View Post
There are things I'm sure you could do - for example, opening a file or folder with FILE_FLAG_BACKUP_SEMANTICS lets you completely bypass ACLs, assuming you have the SE_BACKUP permissions (Administrators and other members of the "Backup Operators" security group).

One other possibility, that in fact sounds quite likely from your description: are you sure that the apps aren't *running* in the background? 8.1 makes apps suspend, not close, by default even if you do the swipe-to-bottom-of-screen gesture. Obviously, if the files are locked, you won't be able to edit them. That should give you a different error, but you never actually said what error you're getting.
I know that apps are tombstoned in 8.1 so you can fast resume like in WP and to fully close you need to swipe to bottom and hold unless tile flips but that's not the case as I tried that on fully closed apps. And the error is just typical "you need permission to perform this action". It looks like things are locked and impossible to access without some special trickery. So that's why in modern apps many crucial files like licenses or in-app purchase settings are stored in human readable files like xml, if there is no way to edit it, why encrypt? Either article that stated that you can gain full access to windowsapps wasn't exactly accurate or something has changed in 8.1, I don't have 8.0 so can't check.
 
callmechewy
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I'm running into this issue as well in 8.1, and I had no issues in 8.0.

Anyone made progress? I have tried right after a reboot, without opening any apps (this is a store app), so the app shouldn't be running or in use.

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