Software update services updating drivers
If you don’t have the Driver CD, you can always use the Windows Update utility to update Drivers in Windows 7.If you want to update all your device Drivers, and automatically keep Drivers updated, then you can choose a driver update tool.
An easy way around this is using a driver update tool (a tool which automates the Driver update process for Windows 7 and other Operating Systems).
If you are sure that all the drivers both old and rare are updated automatically, then pro version is handy.
It keeps the backup of old drivers to ensure that if something happens wrong with your window, your system doesn’t break.
If any while scanning is found, it fixes faulty and missing drivers.
All the downloaded drivers are WHQL-passed so don’t panic about the source.