You can now perform following steps without any trouble.

Windows will now restart and will allow you to install unsigned drivers. Then you can choose “ disable driver signature enforcement“ You can normal restart your PC and press F8 on the startup.Windows Vista 64-bit or Windows 7 64-bit: Press 7 to initiate a reboot with “Disable driver signature enforcement”.Once restarted with Advanced Startup Options, Choose Troubleshoot > Advanced options > Startup Settings > Restart – (your computer will restart again with a list options).(Usually you need to go through System settings to advanced startup. A simple trick is to Shift+Restart – then wait till the computer restarts with advanced startup options.Restart computer with Advanced Startup Options As many devices ship with unsigned drivers. Prerequisites: (Only for Windows 8, Windows 10 or later)Ħ4-bit Windows editions require digitally signed drivers. Or otherwise, Windows XP, Vista (32-bit) or Windows 7 (32-bit) users should ignore the prerequisites section and proceed to the steps to install VCOM drivers as there as unsigned drivers installation will be allowed on those PC. Note: If you are on 64-bit Windows or Windows 8 or later versions, you will need to disable digital driver signature enforcement as told in prerequisites below. Interested users can move on to the Android CDC driver installation process given below.Note: This tutorial is not for flashing devices but just for making your device ready to be flashed. The file is compressed, so you’ll need decompressing software like WinRar or 7zip to extract it. We’ve provided direct Android CDC drivers download links for your Windows 32 bit and 64 bit PC. CDC driver is also known as MTK VCOM USB driver and is very small in size. If you do not have these drivers on your PC, there are chances of a ‘USB Device Not Recognized’ error. Re-installing the latest CDC drivers can help remedy USB driver issues quickly. If you face problems like the Android CDC driver not installing error or the Android CDC driver with a digital signature, the only solution is to re-install drivers. Furthermore, it is even compatible with MT66xx and MT67xx chipsets. Most important, remember that this CDC driver is only compatible with Android phones powered by the MediaTek MT65xx chipset. You can download the Android CDC driver 32 bit and download the Android CDC driver 64 bit from the links given below.

This tool requires the latest CDC drivers as well as MT65xx USB VCOM drivers. Related: Download MediaTek USB Vcom Drivers

Cdc driver for mtk 6582 drivers