[Virtualacorn-list] Windows 8.1 and Access Rights

[Alan Adams]

In message <549B195CF6%mik.towse at xemik.com>
          Mik Towse <mik.towse at xemik.com> wrote:

> Can someone tell me what I'm doing wrong?

> Back Story
> I have 2 Windows 8 copies of VRPC. One on my main Desktop & the other I've
> installed on my Laptop today.

> All ROS HDDs live on a removable HDD, which is assigned E: on both systems.
> So both computers VA.cfg file contains the same info (except the activation
> code, obviously).

> CMOS file is same on both computers.

> The idea, which worked beautifully on WXP, is when I go away I unplug the HDD
> from the Desktop & stick it in the laptop.

> It all used to work seamlessly. That was until Windows 8 stuck its oar in.

> User on BOTH Windows computers is "RISC OS".

The user is identified by an SID, which will look something like 
S-1-5-23-24576889543454-3445567677  etc, etc.
The name "RISC OS" is a label attached to the SID.

The SID will be different on the two machines, so you will need to 
grant access rights to the folder twice, onec on each machine.

> Problem
> Plug HDD in laptop. ROS booted, but with errors & I couldn't access
> HardDisk5 at all. Ah, access rights issues, I figured. Ok, so I gave access
> rights to RISC OS for both HDD folders. I did NOT transfer ownership.

> ROS boots up, everything works fine. Cheers all round! :D

> However...
> ...plug HDD back in Desktop, ROS won't boot - complains of access violation.
> Can boot to Desktop, but can't access anything other than the Data dir'
> (might be shared, but I can't remember). Hang on, the HDD was fine an hour
> ago.

> I try to access the folder in Windows, but it won't let me. ALL other folders
> on the drive are accessible, though.

> So, I try settings the access rights again, but can't. Then Windows tells me
> I can't access the folder containing the drives AT ALL & that they are
> probably corrupted. Oh whoppee, Windows, thanks for that. (I have full
> backups, but they were done yesterday).

Can you see the folder? If so, you may need to take ownership in order 
to give yourself enough access to grant additional rights.

It can get a bit tedious...

Properties, Security Tab, Advanced, Owner tab. Change owner to one of 
the administrators. (You will need to be logged in ad one of them to 
do this). Click Edit, select a new owner. Tick "replace owner on 
subfolders and objects, Click OK.

Exit all the windows back to properties, and exit properties.

Back into properties, security.
Add permissions for the additional user. You will see, in the list of 
users, one at least identified by SID. That is a user from the other 
Windows system. Don't alter it.

> So, I reboot Windows in Repair Mode, which spends an age repairing Drive E:.
> When it had finished & booted up, VRPC/ROS boots up fine.

> So the Question is...
> ...what do I have to do to the folders on E: to allow me to use them on
> either computer without all this Windows nonsense stopping me?

> TIA


-- 
Alan Adams, from Northamptonshire
alan at adamshome.org.uk
http://www.nckc.org.uk/