The Nokia G300 uses a Qualcomm chipset, the below drivers will let you access advanced features of the phone, especially if it is an unlocked device. These phones are on prepaid Tracfone in the US, and this software may be more difficult to use due to the locking period on Tracfone devices.
Nokia ADB USB Driver (For connecting to PC)
File: get-latest_usb_driver_windows.dln
2125647c187067025667e4023e7d88eb568de2a4870b0e5b1aa355b6153d09be
Nokia CDC USB Driver (For Flashing Firmware)
File: get-latest_usb_cdc_driver_windows.dln
9a6c9a1c1fb1373544c5df57d4291b30488be5a9766ff86df34847f30891b7aa
Nokia VCOM USB Driver (For Flashing Firmware)
File: get-latest_usb_vcom_driver_windows.dln
0a9c855749a45a21009d32ff37ce8110ce80406c26cdecf209881da3c25d737c
Nokia ADB and Fastboot Drivers
File: get-latest_usb_adb_driver_windows.dln
36161ed97859359195bca5f489464a0628c6dd85673c6d95bceb380ebe3e5252
Nokia Qualcomm USB Driver
File: get-latest_usb_driver_windows.dln
6f71a3f6451ed68b4feedd9cd399147d02e10fa59112e9e1d061b918c05b0ff3
Download the zip file extract the contents and run the setup program.