AutoCAD LT costs roughly $55/month (or less annually). That is the price of two pizzas. If you value your time, it is cheaper to work one hour of freelance work to pay for LT than to spend three hours resetting trials, reinstalling drivers, and risk malware.
Trial Version expired directly after first install. - Forums, Autodesk autocad 30 day trial reset
If your trial has truly ended and you still need access, avoid "reset hacks" that can compromise your system or violate terms of service. Instead, consider these official alternatives: Do THIS to Get AutoCAD for FREE! AutoCAD LT costs roughly $55/month (or less annually)
Attempting to reset an AutoCAD trial is generally considered a violation of Autodesk's Terms of Use Terms of Service autocad 30 day trial reset