I am the only administrator on my Window's 7 Asus x53E series laptop. Why is a standard user able to access my files by just searching my name in the start menu? If I log into guest account and search my name it shows an error that i don't have permission. When i log into my roommate's standard account and go to the start menu I put my name in search and everything I have done or searched is open to them . How can i make my administrator account private
By default, Windows 7 grants full control of the user folder and subfolders to the SYSTEM account, Administrators and the effective owner. Other, non-administrative users do not get any access rights to the user space. These NTFS permissions are not necessarily enforced and may be circumvented, but should prevent the straightforward accessing of files you have described.
Check whether your personal files are stored in the designated userspace
Next, make sure the other user is not a member of the group Administrators. You can lock administrators out of your personal files, but bypassing this is trivial.
Finally, you could take a closer look at the permissions of the user folder (and subfolders) through the security tab in the folder's properties and untick access rights that are out of place.
Although this will keep most nosey users at bay, if you are really worried about the security of your personal files, the NTFS permissions will not suffice; use encryption instead.