Hi Shen,
I am Sumit, an Independent Advisor here to assist you.
The most reliable way to download drivers is from the manufacturer. Third-party programs often install the wrong ones hence it isn't a good idea.
An explanation why DriverPack is identified as a threat is here.
https://forums.malwarebytes.com/topic/229230-re...
Standard 3rd party link disclaimer:
There may be links to non-Microsoft websites that would provide accurate and safe information. Watch out for ads on the websites which are frequently classified as a PUP (Potentially Unwanted Products). There is no need to buy paid products to fix your computers as they do more harm than good sometimes.