4/25/2018 +1097 new drivers.
Tecom Er4021un 5 stars review"The best driver WIKI ever! I wil keep coming back for sure."Eric Smalter, Boston, MA
Supported languages for Tecom Er4021un
Certifications for Tecom Er4021un
5 stars for Tecom Er4021un "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.

Tecom Er4021un Driver Download

Windows Compatibility for Tecom Er4021un driver

Tecom Er4021un Driver Details:

Tecom Er4021un File Name:

Tecom Er4021un Driver Version: 29.4tRS

Tecom Er4021un ZIP Size: 110.kb

Manufacturer: Tecom

Tecom Er4021un was fully scanned at: 4/19/2018
Scan Status: driver download scanOK

Tecom Er4021un 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 10 Mobile 32bit, Windows 8 Pro 64bit, Windows 10 Home 32bit, Windows 10 Pro 64bit, Windows 7 Home Premium 64bit, Windows XP Home Edition, for home desktops and laptops 64bit, Windows 10 S 64bit, Windows Vista Home Premium 32bit,

Tecom Er4021un Download Stats:

Driver Uploaded: 4/21/2018

Direct Downloads: 2265
Most Recent Download: 4/26/2018
Managed Downloads: 3701
Most Recent Download: 4/26/2018
Download Mirrors: 2
Current Delay: 13 Seconds
Driver License: Free to the general public

Direct Download Success Stats:

Reports Issued By 2150/2265 Users

Success Reported By 237/2150 Users

Driver Download Score66/100

Driver Installation Score61/100

Overall preformance Score60/100

Tecom Er4021un 121 Thumbs Up121Thumbs
Tecom Er4021un 28 Thumbs Down28Thumbs
Tecom Er4021un 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 3227/3701 Users

Success Reported By 2710/3227 Users

Driver Download Score81/100

Driver Installation Score82/100

Overall preformance Score95/100

Tecom Er4021un 2620 Thumbs Up2620Thumbs
Tecom Er4021un 138 Thumbs Down138Thumbs
Tecom Er4021un 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 Tecom Er4021un 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 Tecom Er4021un + all other outdated drivers, and installs them all at once.

Please help us maintain a helpfull driver collection.
After downloading and installing Tecom Er4021un, 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 Tecom Er4021un problems:

Tecom Er4021un 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 Tecom Er4021un disfunctions.

Scan performed on 4/25/2017, Computer: Lenovo ThinkStation D20 - Windows 7 64 bit

Outdated or Corrupted drivers:3/19

Device/DriverStatusStatus DescriptionUpdated By Scanner
Synaptics Microsoft PS/2 MouseUp To Date and Functioning
Mice And Touchpads
Microsoft Microsoft USB Wheel Mouse OpticalUp To Date and Functioning
Microsoft Microsoft USB Comfort Optical Mouse 3000 (IntelliPoint)Up To Date and Functioning
Logicool Logicool HID-compliant Optical Tilt Wheel MouseUp To Date and Functioning
Usb Devices
Aladdin Knowledge Token 2.7.195Up To Date and Functioning
Samsung GT-I9100Up To Date and Functioning
Sound Cards And Media Devices
Advanced Micro Devices High Definition-audioapparaatUp To Date and Functioning
Realtek Audio Device on High Definition Audio BusUp To Date and Functioning
Network Cards
Huawei Remote NDIS based Internet Sharing DeviceCorrupted By Tecom Er4021un
Microsoft Keyboard Device FilterUp To Date and Functioning
Hard Disk Controller
NVIDIA Standard Dual Channel PCI IDE ControllerUp To Date and Functioning
Nokia Nokia USB PhonetUp To Date and Functioning
Microsoft SDA Standard Compliant SD Host ControllerUp To Date and Functioning
Cameras, Webcams And Scanners
Brother Brother DCP-115C USBUp To Date and Functioning
Video Cards
Intel(R) HD GraphicsCorrupted By Tecom Er4021un
Input Devices
KME USB Human Interface DeviceUp To Date and Functioning
Port Devices
MediaTek MediaTek PreLoader USB VCOM Port (COM51)Outdated
Sony Digital Flat Panel (1024x768)Up To Date and Functioning
Mobile Phones And Portable Devices
Acer NOKIAUp To Date and Functioning

Scan performed on 4/26/2018, Computer: Acer Aspire M5800 - Windows 7 32 bit

Outdated or Corrupted drivers:9/23

Device/DriverStatusStatus DescriptionUpdated By Scanner
Intel Controller Enhanced Host USB2 Intel(R) famiglia ICH9 - 293AUp To Date and Functioning
Mice And Touchpads
Alps Alps Pointing-deviceUp To Date and Functioning
Logitech Logicool HID-compliant Unifying MouseUp To Date and Functioning
Microsoft Logitech USB WheelMouseUp To Date and Functioning
Usb Devices
Research In Motion BlackBerry SmartphoneUp To Date and Functioning
Intel(R) 82801FB/FBM SMBus Controller - 266ACorrupted By Tecom Er4021un
Sound Cards And Media Devices
AVerMedia AVerMedia A373 MiniCard Dual DVB-TUp To Date and Functioning
Realtek Periferica audio su bus High Definition AudioUp To Date and Functioning
Network Cards
Realtek 150Mbps Wireless 802.11b/g/n Nano USB AdapterUp To Date and Functioning
Microsoft Keyboard Device FilterCorrupted By Tecom Er4021un
Hard Disk Controller
VIA VIA Serial ATA Controller - 3149Corrupted By Tecom Er4021un
Intel Port racine express PCI Intel(R) 82801FB/FBM PCI -2662Corrupted By Tecom Er4021un
National IrDA Fast Infrared PortCorrupted By Tecom Er4021un
Motorola Android Composite ADB InterfaceUp To Date and Functioning
Nokia Nokia E52 USB LCIFUp To Date and Functioning
Nokia Nokia 5230 USB LCIFUp To Date and Functioning
AuthenTec AuthenTec AES3500 TruePrint SensorUp To Date and Functioning
Cameras, Webcams And Scanners
Canon CanoScan 3200/3200FUp To Date and Functioning
Video Cards
Intel Standard VGA Graphics AdapterCorrupted By Tecom Er4021un
Input Devices
Microsoft HID-compliant system control deviceCorrupted By Tecom Er4021un
Port Devices
Mobile Connector Device Diagnostic Interface (COM11)Corrupted By Tecom Er4021un
Sony Digital Flat Panel (1024x768)Corrupted By Tecom Er4021un
Mobile Phones And Portable Devices
Acer NOKIAUp To Date and Functioning
Driver ModelOSOriginal Upload DateLast ModificationDriver FileFile SizeCompatible Computer ModelsAvailabilty To Instalation Manager
Tecom Er4021un M421.104For Windows 7 32 bit8/22/201412/29/2016all_drivers-m421.104.exe86kbGateway GM5688E, Fujitsu FMVXNN281, HP DV9304EU, IBM 265244G, Sony VGN-TT1, Sony VPCF13D4E, HP DM150A-ABM A320M, Toshiba Dynabook Satellite T30 173C/5W, HP NC699AA-ABJ a6740jp, and more.
Tecom Er4021un I1.11.1770For Windows 7 64 bit10/19/201412/29/2016ayciyw-i1.11.1770.exe115kbFujitsu FMVFB70NT, ASUS R052CE, HP 3082, Lenovo ThinkPad X61, Panasonic CF-53AAC01FT, NEC PC-GL26ES9LE, HP KX621AA-ABT, HP FR564AA-ABF m9356.f, Packard Bell IMEDIA B6363, Acer Veriton M-480G, and more.
Tecom Er4021un X20764For Windows 710/7/201412/28/2016all_drivers-x20764.exe166kbHP HP Compaq 6910p, HP HP Compaq nc6110, Sony PCG-FX33S_BP, NEC Express5800/56Xe [N8000-672, Toshiba SATELLITE PRO L770-149, Biostar TP45 HP, Sony VGN-TZ92S, Toshiba Satellite L850-B750, Sony VGN-SZ76GN_B, MSI MS-16GN, and more.
Tecom Er4021un S31.1384For Windows 1012/1/201412/30/2016all_drivers-s31.1384.exe218kbToshiba SATALLITE A300, WIPRO WSG68125W7-0002, Sony VGN-CS31Z_Q, IBM IBM System x3400 M3 Server -[7379KFG, IBM ThinkPad R51, Intel S3420GPC, HP HP ProBook 4520s, ASUS P5QPL-VM, Panasonic CF-18KH2ZXBC, WIPRO WIV37555-1436, and more.
Tecom Er4021un 61.1963For Windows 10 64 bit2/10/201512/30/2016all_drivers-61.1963.exe198kbToshiba Dynabook T350/34BCS, Sony VPCEA36FG, Sony PCV-RS216, IBM 2668WGY, Compaq ProLiant ML350 G3, and more.
Tecom Er4021un Y2928For Windows 7 32 bit1/2/201512/29/2016vjqylfqb-y2928.exe105kbSony VGN-FE17SP, Compaq FR664AA-ABF SR5617FR, Lenovo 7661ZRG, Acer Aspire 1825PT, THEIS TH-C346/945GZME-RH/512/80/Midi-Towe, Sony PCV-RZ211, Sony VGN-NS220TH, Panasonic CF-19KHRC62M, NEC PC-MY30VBZED, HP GX610AAR-ABA m9180f, Panasonic CF-T8EWETZAM, Sony SVS1311B4E, and more.
Tecom Er4021un K222.136For Windows 7 64 bit9/23/201412/30/2016all_drivers-k222.136.exe92kbLG R580-UAAD6BT, LG R405-A.CPF1E1, Sony PCV-RZ104, KONTRON 886LCD-M/Flex, HP PS226AA-ABE, IBM 8141KGR, and more.
Tecom Er4021un 30096For Windows 72/8/201512/29/2016all_drivers-30096.exe33kbIBM 8183Y59, Sony VPCEB33FG, HP 310-1125uk, Gateway GT5652j, Intel WIV68805-0052, and more.
Tecom Er4021un 32022For Windows 101/6/201512/29/2016all_drivers-32022.exe126kbHP HP Pavilion 0 Notebook PC, HP HP Pavilion 11 x2 Notebook PC, Compaq EC516AA-ABH SR1519NL NL530, Lenovo ThinkPad Edge 11, HP XXX, Gateway MC7813G, Sony VGN-NW24MG, LG R560-CR20K, Fujitsu FMVNB14BR, Lenovo ThinkPad X61, NEC PC-LS150FS1TB, and more.

Please Note: There are particular operating systems known to have problems with Tecom Er4021un:
  • Windows 10 Enterprise
  • Windows XP Starter Edition
  • Windows 10 Education
  • Windows 7 Enterprise (Microsoft Windows NT)
  • Windows 8
  • Windows RT
  • Windows 10
  • Windows 7 Home Premium
If you encounter problems with the direct download for these operating systems, please consult the driver download manager for the specific Tecom Er4021un model.
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