Help w file permissions - error message (-2005529767)

Help. An app I updated worked fine, but now I get the error message
Invalid data (-2005529767) when I run it. Google found references to
the error message dating back to 2009, but it involved Steam, to which
I do not subscribe and have never installed on my pc.

But the error message could crop up because file permissions have gone
haywire on my pc. Windows Pro 8.1 64-bit.

Underneath the "properties" function of my root level folder, the
read/write attribute is listed as "read only". I manually change it to
provide full read/write permission. Windows then pops up the screen to
say I need admin privileges to do so and I click OK and change the
permissions. Afterwards, before exiting the properties window and
after clicking "apply" the changes, the read/write permissions are
changed to allow read/write.

Howver, when I prepare to do some file work, Windows has reset the
folder to read only. Why? As far as I know, I'm running as
administrator. I've also drilled down to advanced to change ownership
to administrator. That change sticks.

My guess is that my problem deals with the screwed up file read/write
permissions, not to anything related to Steam.

So I would like to know if anyone else has seen Windows screwing around
with the file permissions. The last time I had problems like this was
perhaps over a year ago, and I solved them by running as admin. This
time around, I can't even get changes to file permissions to stick long
enough so that I can run the app without it crashing.

Thanks.

Paul wrote:

Yes wrote:
Help. An app I updated worked fine, but now I get the error message
--snipped--

The "read-only" box on a folder, is a fake.
--snipped--
Later,
Paul

Follow up report. At the suggestion in another group, I reran the
program that was giving me problems. This time, it worked. I do not
know why, just that it did. AFAIK, I did try running it as an
administrator. The problem is, at least for now, resolved, and I'm
proceeding with updating my software.

Thanks for the links. I'll read them to see what I can glean.

John