Basics about file/folder permissions on Win 7

Posted by Altar on Super User See other posts from Super User or by Altar
Published on 2010-06-01T08:18:02Z Indexed on 2010/06/01 8:23 UTC
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Hi.

Under Win XP I never touched the permissions of a file/folder. I was happy with the way it worked. But recently I installed Windows 7 on a drive that previously hosted Windows XP. Now, some programs do not have 'read' and/or 'write' access to their own folders - and I am not talking about system folders like 'Program Files' but normal folders like 'C:\my data\my own folder\program folder'.

I see that for folders created under Win XP I have some user groups that do not exist for 'normal' folders (folders created by me recently under Windows 7).

For example, for the Win XP folder I have:

Creator owner
System
Account unknown(S-1-5-21 blablabla...
Admins
Users

For Win7 folders I have:

Authenticated users
System
Admins
Users

How should I proceed?

Should I give the right to the "Users" account to write to XP folders? Should I make the old folders (the XP folders) to have the same groups of users as the normal (Win7) ones by adding the "Authenticated users" account to those folders? Should I delete the "Account unknown" account from my system? (In this case, how?)

Many thanks.

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