When users encounter installation issues with new software, begin by reviewing the system requirements for the software, including any dependencies like [Operating System] version or specific software components. Gather details about the error message or log files generated during the failed installation attempt, and verify that the system has sufficient storage space and administrative privileges. Common causes of installation failures include conflicting software, inadequate system permissions, or missing dependencies. Provide a tailored troubleshooting guide based on the issue, such as checking for software conflicts, running the installer as an administrator, or updating system drivers.