The only valid source of drivers is the Dell support page. Do not take drivers from any source other than the actual OEM of the equipment.
Most Dell re-installs will automaticalliy install all the drivers you need. The only one you need to be worried about at time of install is the Network driver. If that is missing, go to support.dell to get it. Because this driver is crucial, you should download it and have it ready BEFORE you install Windows.
In most cases, the Windows Update process itself will provide missing driers. But do not trust Windows Updates for drivers AFTER the initial install.
Drivers are very different from Windows software. They shoule NEVER be updated unless you have a problem which diiagnosis points to a specific driver. Most systems will go happily to the junk heaven neer having had a driver update and that is fine.
Also, do not install any software, not even AV until after all windows updates are completed.