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I am trying to copy and replace a file into the System32 folder. I have given my account ownership of the folder, but still cannot copy and replace a file over to this folder! Why is this? This is the only user account on the machine.

Giving myself full permissions afterwards yields "error Applying Security" for each individual folder/file.

An error occurred while applying security information to: (file/folder). Access is denied.

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Permissions issue in Windows 7 - System32

I am trying to copy and replace a file into the System32 folder. I have given my account ownership of the folder, but still cannot copy and replace a file over to this folder! Why is this? This is the only user account on the machine.