I have a Windows 7 desktop computer, I am the only user, with administrative rights. Today I installed a new HDD from another my Windows 7 computer. Now on this HDD I can not access my files and folders in the "Desktop" folder.
When I double click such folder I get a message: "You don't currently have permission to access this folder. Click Continue to permanently get access to this folder". After I click "Continue" I get a message: "You have been denied permission to access this folder. To gain access to this folder you will need to use the security tab." Then I open the "Security" tab, click "Advanced" button, open "Owner" tab, the tab shows: "Current owner: Unable to display current owner.". After I click "Edit" button, I get a message: "You only have permission to view the current owner". After I click "OK" button, a new window shows "Current owner: S-1-5-21-3867894240-3762958599-2688463192-1000" and no option to change that.
The same happens when I try to open or take ownership of my files in the "Desktop" folder.
At the same time I can open files and folders in other directories on that HDD.
How can I take ownership of my files and folders?
UPDATE:
I have Windows 7 Home Premium, so I do not have access to the Local Security Policy Editor. My old computer got broken, so I took the HDD from it and put it into my other computer. The files on that HDD I am trying to access. That is not the HDD from which I boot now. I still hope that I will be able to repair the old computer, and then I will put the HDD back there. So, it is important to keep that HDD workable and preferably bootable. But for now on I need to have access to those files in the "Desktop" folder. For those folders that I can not open, Security tab shows that I already have the "Take ownership" permission but the option is greyed, so I can not change it.
UPDATE 2:
Though copying of the folders did allow me to access them, something got messed up in the system, so that now Avast Antivirus does not allow me to boot Windows. I am still trying to figure it out. Right now I can boot either in the Safe Mode, or with Avast completely disabled in the Normal mode.
Another strange thing: something disallows me to edit security permissions for folders in the boot HDD 'C:\', that is all the allow options are checked for Administrators, but they are also greyed and unchangeable. The lowest editable level is the drive 'C:\' itself. Everything below is non-editable.
Probably set by the antivirus software. Still figuring this out.
UPDATE 3:
I came to conclusion that inability to edit security permissions for inner folders is not a problem. It looks that the security permissions are set to be inherited from the outer folders and they can be edited there. It does not create the problem.
I booted Windows into the Safe Mode and in this mode I can access all files and folders in the Desktop folder on that HDD which I could not access in the normal mode. The owner of all these is set as "S-1-5-21-3867894240-3762958599-2688463192-1000". Yet it does not prevent me from opening them in the Safe boot.
Moreover, the owner of some of my files on that HDD that I could access in the normal boot from the beginning is also "S-1-5-21-3867894240-3762958599-2688463192-1000". Other my files on that HDD that I could access in the normal boot have owner "S-1-5-21-3867894240-3762958599-2688463192-501".
Another interesting thing, I copied a file from that HDD to my disk C:. On that HDD the file has an owner "S-1-5-21-3867894240-3762958599-2688463192-1000". But after copying on the disk C:\, the file's owner now became "User (Computer\User)".
When I copy files and folders from the "Desktop" folder on that HDD to my disk C:\, the file's owner is automatically changed to "Administrators (Computer\Administrators)"
Also, in the Safe Mode I can change ownership of the files and folders in the "Desktop" folder on that HDD. But after I reboot in the normal mode I still can not open the folders, despite I am set as the owner of the folder.
So, me not being set as the file's owner does not prevent me from opening such a file in the normal boot. And reversely, the reason that I can not open those files is not that I am not set as the owner of the files.