5/22/2018 +627 new drivers.
A4tech Ok-820 5 stars review"The best driver WIKI ever! I wil keep coming back for sure."Eric Smalter, Boston, MA
Supported languages for A4tech Ok-820
Certifications for A4tech Ok-820
5 stars for A4tech Ok-820 "WOW! Finally my PC got up to speed!" Melany Kim 7/18/2016
Our main support OS are: Windows 7, Windows 7 64 bit, Windows 7 32 bit, Windows 10, Windows 10 64 bit, Windows 10 32 bit, and Windows 8.

A4tech Ok-820 Driver Download

Windows Compatibility for A4tech Ok-820 driver

A4tech Ok-820 Driver Details:

A4tech Ok-820 File Name:

A4tech Ok-820 Driver Version: 68Dy

A4tech Ok-820 ZIP Size: 126.kb

Manufacturer: A4tech

A4tech Ok-820 was fully scanned at: 5/16/2018
Scan Status: driver download scanOK

A4tech Ok-820 now has a special edition for these Windows versions: Windows 7, Windows 7 64 bit, Windows 7 32 bit, Windows 10, Windows 10 64 bit,, Windows 10 32 bit, Windows 8, Windows XP Home Edition, for home desktops and laptops 32bit, Windows Vista Home Basic 32bit, Windows 8 Enterprise 32bit, Windows Vista Starter 64bit, Windows 10 IoT 64bit, Windows Vista Home Premium 32bit, Windows RT 64bit,

A4tech Ok-820 Download Stats:

Driver Uploaded: 3/7/2018

Direct Downloads: 162
Most Recent Download: 4/24/2018
Managed Downloads: 4310
Most Recent Download: 4/24/2018
Download Mirrors: 3
Current Delay: 21 Seconds
Driver License: Free to the general public

Direct Download Success Stats:

Reports Issued By 157/162 Users

Success Reported By 40/157 Users

Driver Download Score68/100

Driver Installation Score66/100

Overall preformance Score68/100

A4tech Ok-820 20 Thumbs Up20Thumbs
A4tech Ok-820 4 Thumbs Down4Thumbs
A4tech Ok-820 driver direct download was reported as adequate by a large percentage of our reporters, so it should be good to download and install.

Installation Manager Success Stats:

Reports Issued By 3908/4310 Users

Success Reported By 3411/3908 Users

Driver Download Score97/100

Driver Installation Score78/100

Overall preformance Score85/100

A4tech Ok-820 3404 Thumbs Up3404Thumbs
A4tech Ok-820 268 Thumbs Down268Thumbs
A4tech Ok-820 driver installation manager was reported as very satisfying by a large percentage of our reporters, so it is recommended to download and install.


1. Direct Download

Select your OS and press "Download".

This option requires basic OS understanding.
Select Your Operating System, download zipped files, and then proceed to
manually install them.
Recommended if A4tech Ok-820 is the only driver on your PC you wish to update.


2. Driver Installation Manager

This option requires no OS understanding.
Automatically scans your PC for the specific required version of A4tech Ok-820 + all other outdated drivers, and installs them all at once.

Please help us maintain a helpfull driver collection.
After downloading and installing A4tech Ok-820, or the driver installation manager, take a few minutes to send us a report:
* Only registered users can upload a report.

Don’t have a password?
Please register, and get one.

Other drivers most commonly associated with A4tech Ok-820 problems:

A4tech Ok-820 may sometimes be at fault for other drivers ceasing to function

These are the driver scans of 2 of our recent wiki members*

*Scans were performed on computers suffering from A4tech Ok-820 disfunctions.

Scan performed on 4/24/2017, Computer: Sony PCG-Z1XMP - Windows 7 64 bit

Outdated or Corrupted drivers:10/22

Device/DriverStatusStatus DescriptionUpdated By Scanner
Intel(R) 8 Series/C220 Series PCI Express Root Port #4 - 8C16Up To Date and Functioning
Mice And Touchpads
(Standard mouse types) USB HID-compliant mouseCorrupted By A4tech Ok-820
WheelMouse USB Advanced Wheel MouseCorrupted By A4tech Ok-820
Elo TouchSystems Elo Serial Touchmonitor InterfaceUp To Date and Functioning
Usb Devices
Hewlett-Packard USB Composite DeviceUp To Date and Functioning
Hewlett-Packard HP Photosmart C7200 (DOT4USB)Corrupted By A4tech Ok-820
Sound Cards And Media Devices
NVIDIA High Definition Audio DeviceCorrupted By A4tech Ok-820
Network Cards
Intel(R) Centrino(R) Wireless-N 100Outdated
Microsoft Keyboard Device FilterUp To Date and Functioning
Hard Disk Controller
Intel(R) 8 Series Chipset Family SATA AHCI ControllerCorrupted By A4tech Ok-820
Motorola Android Composite ADB InterfaceUp To Date and Functioning
Initio Initio Default ControllerUp To Date and Functioning
Panasonic MATSHITA DVD-RAM UJ-830SaUp To Date and Functioning
Microsoft Texas Instruments PCI-1520 CardBus ControllerCorrupted By A4tech Ok-820
Google Android ADB InterfaceUp To Date and Functioning
Nokia Nokia USB LCIFUp To Date and Functioning
Cameras, Webcams And Scanners
Canon Canon MP495 serUp To Date and Functioning
Video Cards
Intel Video ControllerCorrupted By A4tech Ok-820
Input Devices
Logitech USB-HID (Human Interface Device)Up To Date and Functioning
Port Devices
hspa Modem Application4 port (COM7)Outdated
Sony Digital Flat Panel (1024x768)Up To Date and Functioning
Mobile Phones And Portable Devices
Acer NOKIAOutdated

Scan performed on 4/24/2018, Computer: Sony PCG-Z1XSP - Windows 7 32 bit

Outdated or Corrupted drivers:12/24

Device/DriverStatusStatus DescriptionUpdated By Scanner
Intel(R) Universal Serial Bus (USB) ControllerCorrupted By A4tech Ok-820
Mice And Touchpads
WheelMouse HID mouseUp To Date and Functioning
Microsoft Microsoft PS/2 MouseOutdated
Synaptics Synaptics PS/2 Port TouchPadUp To Date and Functioning
Usb Devices
Realtek Realtek RTL8191SU Wireless LAN 802.11n USB 2.0 Network AdapterUp To Date and Functioning
Microsoft HID Keyboard DeviceOutdated
Sound Cards And Media Devices
ASUSTek ASUS TV7134 WDM TVTuner (FM1216ME)Corrupted By A4tech Ok-820
NVIDIA NVIDIA GeForce GT 635MUp To Date and Functioning
Toshiba TOSHIBA USB ISDB-T TV Tuner(x64)Corrupted By A4tech Ok-820
Network Cards
Intel(R) Dual Band Wireless-AC 3160Up To Date and Functioning
Microsoft HID KeyboardOutdated
Hard Disk Controller
Advanced Micro Devices Controller standard PCI IDEOutdated
Texas Instruments Texas Instruments PCI7420 Integrated FlashMedia ControllerUp To Date and Functioning
Intel USB-IF USB 3.0 HubUp To Date and Functioning
Datel Design & Development DSi AR HW ProgOutdated
Point Grey Research OHCI-konformer Texas Instruments 1394-HostcontrollerOutdated
Nokia Nokia C6-00 USB OBEXUp To Date and Functioning
Microsoft Texas Instruments PCI-xx21/xx11 CardBus Controller with UltraMediaUp To Date and Functioning
Cameras, Webcams And Scanners
Brother Brother DCP-115C USBUp To Date and Functioning
Video Cards
NVIDIA NVIDIA GeForce GT 640MOutdated
Input Devices
KME Dispositivo de interfaz humana USBCorrupted By A4tech Ok-820
Port Devices
hspa Modem Application1 port (COM4)Corrupted By A4tech Ok-820
Sony Digital Flat Panel (1024x768)Up To Date and Functioning
Mobile Phones And Portable Devices
Acer NOKIAUp To Date and Functioning
Driver ModelOSOriginal Upload DateLast ModificationDriver FileFile SizeCompatible Computer ModelsAvailabilty To Instalation Manager
A4tech Ok-820 8202.19For Windows 7 32 bit10/10/201412/30/2016all_drivers-8202.19.exe145kbLenovo 1S16800367700DD, BenQ Joybook T31, HP P6-2393l, Panasonic CF-18DHB32GD, and more.
A4tech Ok-820 622.174For Windows 7 64 bit10/26/201412/27/2016all_drivers-622.174.exe90kbNEC PC-VK26MDZCE, Toshiba Satellite 2455, NEC PC-VK26MDZCE, Sony VGN-SZ13GP_B, HP RX881AA-ABA m8000, Sony VGN-CR510D, Packard Bell EasyNote TM01, Packard Bell IXTREME 6516, Sony PCG-K215S, Fujitsu D2812-A1, HP HP Compaq nc6400, HP WC702AA-UUG HPE-130be, Toshiba Dynabook EX/66MWHS, and more.
A4tech Ok-820 84063For Windows 711/7/201412/29/2016all_drivers-84063.exe177kbBuympc MPC365, Gateway NS40T, Lenovo ThinkPad X200, HP PS351AA-B1U, LG F1-2242HS, and more.
A4tech Ok-820 O20768For Windows 1012/31/201412/28/2016all_drivers-o20768.exe194kbNEC PC-MY21AESED983, Lenovo ThinkCentre E51, Compaq GN732AA-ABH SR5135NL, IBYTE UDP GN ANDROS-I36L, and more.
A4tech Ok-820 421.139For Windows 10 64 bit9/25/201412/29/2016all_drivers-421.139.exe78kbLG R510-K.A275K, NEC PC-LL700BS6R, Gateway P-6318u HSN, Fujitsu FMVCE80T7, Lenovo ThinkCentre A60, Gigabyte EP41-US3L, Avermedia 3150, IBM 808735M, HP HP Compaq nx6325, HP CQ2800EEm, Gateway NX200X, BYON CHAMELEON, Sony VGNSR499PCB, and more.
A4tech Ok-820 31.1693For Windows 7 32 bit2/5/201512/28/2016all_drivers-31.1693.exe211kbWIPRO WIV37455-0863, Sony SVE11139CJB, HP P9867A-ABM 743M, HP PY056AA-ABF w5077.f, HP PX688AA-B14, HP VT626AA-AB1 HPE-170k, and more.
A4tech Ok-820 G4002.18For Windows 7 64 bit9/24/201412/27/2016all_drivers-g4002.18.exe22kbFujitsu FMVNB75ST, Gateway GM5688E, MAXDATA PLATINUM 100 I M5, Panasonic CF-SX2KEMDP, WIPRO WNBOBM4930-EK-0015, ASUS F6Ve, Lenovo 20AY001DMD, Sony VGN-FW56E, Gigabyte X58A-OC, Fujitsu FMVXN0X81, HP NH836AV-ABA m9500z, and more.
A4tech Ok-820 W80072.1For Windows 72/16/201512/27/2016all_drivers-w80072.1.exe134kbLenovo SS09221149, HP S5-1310t, Sony VGN-NS130AE, Compaq GM442AA-ABA SR5125CL, NEC PC-VY21MED5HJW6, EMachines 3265IT, HP PL494AA-ABH, NEC PC-MK34HEZEH, HP NY545AAR-ABA p6210y, Sony VGN-SZ6RXN_C, IBM ThinkPad A30, Crea NW SERIES, and more.
A4tech Ok-820 83864For Windows 103/6/201512/27/2016yjd-83864.exe150kbSony VGN-SZ55B_B, WIPRO WSG37425V-0038, LG E500-G.ABBTZ, HP HP Pavilion dv9600 Notebook PC, Sony VPCW12M1E, Panasonic CF-72TCJWZPM, Fujitsu FMVNP2HT3A, HP NF566AA-ABU, HP KT316AA-ABE, NEC PC-MA30YMZEB, Fujitsu MS-6318, and more.

Please Note: There are particular operating systems known to have problems with A4tech Ok-820:
  • Windows 10 Mobile Enterprise
  • Windows 7 Home Basic
  • Windows 7 Home Premium
  • Windows 10 Mobile
  • Windows Vista Home Basic
  • Windows Vista Home Premium
  • Windows Vista Enterprise (Microsoft Windows NT 6.0.6000.0)
If you encounter problems with the direct download for these operating systems, please consult the driver download manager for the specific A4tech Ok-820 model.
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