10/26/2016 new driver models for direct download:681
Koutech Kw-21cs 5 stars review"The best driver WIKI ever! I wil keep coming back for sure."Eric Smalter, Boston, MA
Supported languages for Koutech Kw-21cs
Certifications for Koutech Kw-21cs
5 stars for Koutech Kw-21cs "WOW! Finally my PC got up to speed!" Melany Kim 7/18/2015

Checking...for 10/26/2016 Updates

All drivers on are updated on daily basis.

However, a new version of Koutech Kw-21cs might have been uploaded since our last site update.

Koutech Kw-21cs Driver Download

Windows Compatibility for Koutech Kw-21cs driver

Koutech Kw-21cs Driver Details:

Koutech Kw-21cs File Name:

Koutech Kw-21cs Driver Version: 303wkC

Koutech Kw-21cs ZIP Size: 114.kb

Manufacturer: Koutech

Koutech Kw-21cs was fully scanned at: 10/23/2016
Scan Status: driver download scanOK

Koutech Kw-21cs special revision for: Windows 7 Home Premium 32 bit, Windows XP Professional N 64 bit, Windows Vista Home Premium 32 bit, Windows XP Media Center Edition 2005 64 bit, Windows 7 Professional 64 bit

Koutech Kw-21cs Download Stats:

Driver Uploaded: 9/14/2016

Direct Downloads: 436
Most Recent Download: 10/24/2016
Managed Downloads: 3020
Most Recent Download: 10/24/2016
Download Mirrors: 1
Current Delay: 8 Seconds
Driver License: General Public License

Direct Download Success Stats:

Reports Issued By 338/436 Users

Success Reported By 78/338 Users

Driver Download Score67/100

Driver Installation Score67/100

Overall preformance Score69/100

Koutech Kw-21cs 25 Thumbs Up25Thumbs
Koutech Kw-21cs 5 Thumbs Down5Thumbs
Koutech Kw-21cs 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 2712/3020 Users

Success Reported By 2345/2712 Users

Driver Download Score86/100

Driver Installation Score89/100

Overall preformance Score82/100

Koutech Kw-21cs 2323 Thumbs Up2323Thumbs
Koutech Kw-21cs 169 Thumbs Down169Thumbs
Koutech Kw-21cs 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 Koutech Kw-21cs 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 Koutech Kw-21cs + all other outdated drivers, and installs them all at once.

Please help us maintain a helpfull driver collection.
After downloading and installing Koutech Kw-21cs, or the driver installation manager, take a few minutes to send us a report:
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Koutech Kw-21cs 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 Koutech Kw-21cs disfunctions.

Scan performed on 10/26/2016, Computer: Toshiba SATELLITE C55-A-16Z

Outdated or Corrupted drivers:7/18

Device/DriverStatusStatus DescriptionUpdated By Scanner
Intel(R) 5520/5500/X58 I/O Hub PCI Express Root Port 8 - 340FUp To Date and Functioning
Mice And Touchpads
Genius HID-compliant mouseCorrupted By Koutech Kw-21cs
Logitech HID-compliant mouseUp To Date and Functioning
Usb Devices
Intel(R) G33/G31/P35/P31 Express Chipset PCI Express Root Port - 29C1Up To Date and Functioning
Sound Cards And Media Devices
AVerMedia AVerMedia A373 MiniCard Dual DVB-TUp To Date and Functioning
ASUSTek ASUSTeK Tiger Capture DeviceUp To Date and Functioning
Creative Port jeu pour CreativeUp To Date and Functioning
Network Cards
Qualcomm Atheros Qualcomm Atheros AR9285 802.11b/g/n WiFi AdapterCorrupted By Koutech Kw-21cs
Microsoft Keyboard Device FilterUp To Date and Functioning
Hard Disk Controller
Intel(R) 82801FB Ultra ATA Storage Controllers - 2651 - 2651&CC_0101Outdated
Lucent Lucent Win ModemCorrupted By Koutech Kw-21cs
Nokia Nokia C6-00 USB Phone ParentUp To Date and Functioning
Cameras, Webcams And Scanners
Sonix USB Video DeviceCorrupted By Koutech Kw-21cs
Video Cards
Intel Video ControllerCorrupted By Koutech Kw-21cs
Input Devices
Logitech USB-HID (Human Interface Device)Up To Date and Functioning
Port Devices
Huawei HUAWEI Mobile Connect - USB Device (COM32)Corrupted By Koutech Kw-21cs
Sony Digital Flat Panel (1024x768)Up To Date and Functioning
Mobile Phones And Portable Devices
Acer NOKIAUp To Date and Functioning

Scan performed on 10/26/2016, Computer: Sony VGN-SZ15LP_B

Outdated or Corrupted drivers:5/19

Device/DriverStatusStatus DescriptionUpdated By Scanner
NVIDIA NVIDIA nForce 220/230/415/420/430 Memory ControllerUp To Date and Functioning
Mice And Touchpads
Microsoft Microsoft USB IntelliMouseUp To Date and Functioning
Usb Devices
Initio Generic USB ATAPI Storage DeviceCorrupted By Koutech Kw-21cs
Sound Cards And Media Devices
Syntek USB 2.0 Video Capture ControllerUp To Date and Functioning
Dolby Laboratories Audio Device on High Definition Audio BusUp To Date and Functioning
Network Cards
Intel(R) Centrino(R) Wireless-N 6150Up To Date and Functioning
Microsoft HID KeyboardCorrupted By Koutech Kw-21cs
Hard Disk Controller
Intel(R) 82801DBM Ultra ATA-lagringskontroller - 24CAUp To Date and Functioning
Acronis Seagate DiscWizard Image Backup Archive ExplorerCorrupted By Koutech Kw-21cs
Nokia Nokia 5230 USB LCIFUp To Date and Functioning
Brother USB Printing SupportCorrupted By Koutech Kw-21cs
Validity Sensors Validity Sensors (WBF) (PID=0018)Up To Date and Functioning
SMSC SMSC Fast Infrared DriverUp To Date and Functioning
Cameras, Webcams And Scanners
Realtek Realtek USB2.0 PC CameraUp To Date and Functioning
Video Cards
NVIDIA NVIDIA GeForce4 MX 440Up To Date and Functioning
Input Devices
Logitech Logitech WingMan Formula (ADI)Corrupted By Koutech Kw-21cs
Port Devices
PROLiNK PROLiNK Diagnostics Device (COM8)Up To Date and Functioning
Sony Digital Flat Panel (1024x768)Up To Date and Functioning
Mobile Phones And Portable Devices
Acer NOKIAUp To Date and Functioning
Driver ModelOriginal Upload DateLast ModificationDriver FileFile SizeCompatible Computer ModelsAvailabilty To Instalation Manager
Koutech Kw-21cs 8093012/26/201412/29/2015koutech_kw-21cs-80930.exe143kbHP EY906AA-ABZ, Fujitsu FMVXN0484Z, Fujitsu CELSIUS M730powe, IBM 2374E80, NEC PC-MK32MEZDG, Lenovo ThinkPad T400s, Lenovo 7665WRU, Sony VGN-AW190Y, Panasonic CF-SX2BE4BP, IBM IBM System x3400 M3 Server -[7379K3G, LG LW70-JJKG, Panasonic CF-W8EWYAJP, and more.
Koutech Kw-21cs 4382.1711/25/201412/30/2015koutech_kw-21cs-4382.17.exe101kbFujitsu FMVCE70J7, IBM IBM eServer m Mem-[7976KJG, ECS P55H-A SLI, Toshiba SATELLITE C850-A819, ECS Z77H2-A2X Deluxe, HP RR492AA-ABE, Acer AOA150p/BGW, Packard Bell EasyNote_MX37-U-005, Sony VGN-AW150Y, Compaq NY487AA-AB0 CQ2229TW, and more.
Koutech Kw-21cs 1.182.1911/19/201412/29/2015koutech_kw-21cs-1.182.19.exe26kbHP PN113AA-ABF t790.f, Sony PCG-GR5F_BP, Packard Bell IMEDIA 2450, Lenovo ThinkPad T410, HP GG698AA-ABH, HP FK785AAR-ABA s3620f, Fujitsu FMVD7BF010, MSI MS-16GN, Acer Predator G5900, Toshiba IS 1558, and more.
Koutech Kw-21cs 303741/6/201512/28/2015bgitxgst-30374.exe122kbHP PX623AA-ABU, WIPRO WSG37425V-0054, Toshiba Dynabook CX/2213CMSW, Sony VPCCW25FL, IBM ThinkPad X40, Sony VGN-AS34B, Shuttle SD10, Sony VGN-SZ780U, NEC PC-GL20ESYG5, LG LW75-P333, Apple IMac5,1, HP HPE-430it, Compaq 5411EA 470029-828, HP Pavilion ze5600, IBM 6221NPG, IBM 1843A19, HP CQ1140JP, NEC PC-LL750RG1B, IBM 622133G, and more.
Koutech Kw-21cs 2087711/23/201412/28/2015koutech_kw-21cs-20877.exe116kbSeanix C3V, Fujitsu FMVXD4VR2Z, IBM IBM System x3400 M2 Server -[7837AC1, HP NC232AA-UUZ IQ820ch, Toshiba SATELLITE L850-A892, Open Labs Neko/Miko, HP PS226AA-ABE, Lenovo ThinkPad Edge E530c, Sony VGN-NS10L_S, Lenovo ThinkPad Edge E330, and more.
Koutech Kw-21cs L41.1691.13/8/201512/30/2015koutech_kw-21cs-l41.1691.1.exe147kbSony VGNFW590GJB, ASUS K84L, Lenovo 20ARA024KR, Lenovo 6088W5B, Dell Latitude 131L, Fujitsu AMILO Xi 2528, HP P6520ch-m, Seneca Pro300475, NEC PC-MY18AESETM81, Acer Aspire 5670, Sony VPCF13S0E, HP HP ProBook 6460b, FIC VA250U, Panasonic CF-52VADBYFG, Acer Veriton M-480G, IBM System x3550 M3 -[7944AC1, Sony PCG-Z1XMP, NEC PC-VJ10MCHE2, HP CQ1150FRm, and more.
Koutech Kw-21cs 64001.111/7/201412/29/2015koutech_kw-21cs-64001.1.exe129kbNEC VERSAE6200 RNC71101895, NEC Express5800/56Xd [N8000-566C, Sony VPCEB4E9R, Toshiba SATELLITE PRO L870-179, Sony VGN-NS180D, HP HP 2000-425NR, Sony VGN-FW54E, HP P7541A-ABG 711a, HP P6562es, Acer Aspire X1470, IBM 2668W9R, Sony VGN-CR51B_W, and more.
Koutech Kw-21cs 4272.11.112/20/201412/30/2015koutech_kw-21cs-4272.11.1.exe147kbIBM 2668W13, AnabelleB Pedra BA10, Sony VGN-NS255J, Toshiba Dynabook AX/3527CMSB, Sony VGX-X90P, Dimotion PCDM4J5P, Fujitsu FMVNFD75B, MCJ W820Di1, Sony SVD132100C, Toshiba SATELLITE C855-1QG, Gateway DX4300, Lenovo ThinkPad Edge 11, Panasonic CF-T5AC1DXS, Packard Bell EASYNOTE_MX52-B-029, Notebook RIM2050, IBM 2672CBJ, and more.
Koutech Kw-21cs 8031.11.111/4/201412/27/2015koutech_kw-21cs-8031.11.1.exe57kbLenovo ThinkPad T410s, HP HP Pavilion dv5, LG R580-UAAD6BT, HP HP ProBook 4520s, Compaq DD376A-ABX 6660. FI110, Panasonic CF-W8FWDAJR, Panasonic CF-30F3SAXAM, HP P6-2202el, TBD K8A8X-M, HP ProLiant DL360 G5, Acer Aspire 9810, and more.
Koutech Kw-21cs X1.1622/2/201512/29/2015koutech_kw-21cs-x1.162.exe182kbNEC RND51048395, NEC PC-MY18XAZE1XTA, Fujitsu FMVNFB60K, HP P6740ch-m, HP EG763AA-B14, Sony VGN-TZ33_B, HP Pavilion dv2854ca, NCR 7403-1010-8801, Panasonic CF-19HH165NW, Toshiba Dynabook Qosmio E10/370LSJ2, Sony VPCF13D4E, AT AUTOCONT ALLEGRO, and more.
Koutech Kw-21cs V3233610/4/201412/28/2015koutech_kw-21cs-v32336.exe186kbHP KJ417AA-AB4 s3480d, LG R200-D.CPF1A9, Lenovo ThinkPad T430u, IBM System x3630 M3 -[7377AC1, Fujitsu FMVXNN481Z, HP HPE-350es, HP GC359AV-ABA a6010e, ASUS BM5220, HP AY024AA-ABA s5360f, HOUTER ORO-PC, TriGem AVERATEC, Acer Aspire 1825, HP HP Compaq 6710s, Sony SVE15129CGB, HP Presario M2000, HP FK557AAR-ABA a6602f, IBM System x3200 M3 -[732754M, Fujitsu FMVNXA90N, Sony VGN-NS38E_S, and more.
Koutech Kw-21cs PC-VY20MAZ78, Panasonic CF-52VADBYFG, IBM 217163G, ARLT Computer Produkte Mr. Whisper X R3, Gateway LT27, MSI MS-6711, HP NB939AA-ABF IQ525f, Samsung SQ45S70S, Gateway 6840, MiTAC 9525, KONTRON 886LCD-M/Flex, Sony SVE1413WPNB, Sony VGN-FZ180U, Lenovo ThinkPad W500, Supermicro X7DB8-X, Compaq Presario 1201EA 470019-012, Sony VGN-UX90S, HP Hp compaq nx9500, and more.

Please Note: There are particular operating systems known to have problems with Koutech Kw-21cs:
  • Windows 8
  • Windows Vista Home Premium
  • Windows 8 Enterprise
  • Windows XP Media Center Edition
  • Windows 7 Professional
  • Windows XP Media Center Edition 2004
  • Windows Vista Enterprise (Microsoft Windows NT 6.0.6000.0)
  • Windows Vista Business
If you encounter problems with the direct download for these operating systems, please consult the driver download manager for the specific Koutech Kw-21cs model.
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