QuAERE is a simple tool to get elevated privileges on older systems.
This is done using a custom OS (QuAERE) that contains a script to automate several tools to make the built-in Administrator-Account accessible
QuAERE doesn't work on systems where access to a boot menu etc was blocked, for those you will need to exploit flaws in your setup/security vulnerabilities
Download
Hash (SHA256): A9B12C17C36D5390AB51E106AFE992E6A36DA5C030787AF8C283908A108868E4
(A tutorial on how to install QuAERE on an existing portable OS can be found here,
the ISO just adds a shutdown-command to the "quit"-function and runs it automatically)