Updating to window 7
For whatever reason, you can update drivers easily.
There are two ways you can update the drivers: manually & automatically.
If no incompatibilities are found, Windows 7 Setup will proceed without further interaction From here onwards, you need to follow the default Windows installation procedure.
To simplify this, within the next few months Windows updates will no longer be available from the Microsoft Download Center.
Security bulletins will continue to link directly to the updates, but will point to the packages on the Microsoft Update Catalog instead of the Microsoft Download Center.
Customers that use tools linking to the Microsoft Download Center should follow the links provided in the Security Bulletins or search directly on the Microsoft Update Catalog.
As always, all updates will still be available via WSUS, SCCM, and Windows Update - this change is only for manual downloads.
You may want to update drivers for your Windows 7 to fix some hardware issues or get better PC performance.
I will be focusing only on Vista to Windows 7 upgrade steps that you need to know before starting the actual upgrade process.