Some Linux packages include remote access software similar to Remote Desktop in Windows. You can use the Linux version of the remote desktop software to allow a remote support person access to your PC, so they can help diagnose and repair problems with Windows 7. The remote support person might need to be running the same version of Linux that you are, but other operating systems and some third-party remote desktop packages are compatible.
System Monitor in Ubuntu, as in many Linux distributions, is very similar to the live System Monitor in Windows. System Monitor provides live details of CPU, memory, and network activity on a PC. This can be useful for helping diagnose hardware errors; for instance, it can help determine if you are having difficulty getting online because of networking problems.
Some Linux distributions come with advanced system testers. These will test many aspects of computer hardware to find and diagnose problems. The system tester in Ubuntu is an excellent example. It tests every aspect of the hardware and guides you through automated diagnostics with a helpful, wizard-based interface.
Source of Information : Microsoft Press - Troubleshooting Windows 7 Inside Out