Where can I download drivers for Windows 7?

Open the device manager select a hardware / component for which driver is to be downloaded , (one ay a time). Then select update driver . Then you will have option to either browse for a driver or select automatically. Here select automatically. Windows will download driver for that hardware / component from internet automatically. Once done repeat this process for other hardware/ components one by one.

How about those cool and amazing Bluetooth device drivers https://driverpack.io/en/devices/bluetooth? Personally I appreciate its qualitya lot. I have just downloaded a couple of them and it looks pretty well. Plus as you know DriverPack will automatically select and install the required drivers. Cheers