"you may not have the appropriate permissions to access the item"?

i get this message once i open a new folder or program.regarding e.gary.i has been installing the particular trial for photoshop cs5 once i clicked deploy this messaged made an appearance (above).
concerning even tried taking ownership in the folder.
the folder is usually in your internal hd.
i will be using windows vista property premium 32-bit
help could be appreciated alot

It can be performed that you’ll be the user and still don’t have permission to write into the folder.Check on the reliability tab this “Administrators” gain access to has:”Full Control” my partner and i.e.(Read, Generate, Execute).