12/4/2016 new driver models for direct download:573
Krt A21 5 stars review"The best driver WIKI ever! I wil keep coming back for sure."Eric Smalter, Boston, MA
Supported languages for Krt A21
Certifications for Krt A21
5 stars for Krt A21 "WOW! Finally my PC got up to speed!" Melany Kim 7/18/2015

Checking...for 12/4/2016 Updates

All drivers on are updated on daily basis.

However, a new version of Krt A21 might have been uploaded since our last site update.

Krt A21 Driver Download

Windows Compatibility for Krt A21 driver

Krt A21 Driver Details:

Krt A21 File Name:

Krt A21 Driver Version: 745v1VPw

Krt A21 ZIP Size: 133.kb

Manufacturer: Krt

Krt A21 was fully scanned at: 12/1/2016
Scan Status: driver download scanOK

Krt A21 special revision for: Windows Vista Starter 32 bit, Windows XP Professional 64 bit, Windows XP Starter Edition 32 bit, Windows 8 64 bit, Windows XP Professional N 32 bit, Windows 10 64 bit, Windows Vista Home Premium 64 bit, Windows RT 64 bit, Windows XP 64-bit Edition 32 bit, Windows 7 Enterprise (Microsoft Windows NT) 32 bit

Krt A21 Download Stats:

Driver Uploaded: 11/5/2016

Direct Downloads: 319
Most Recent Download: 12/3/2016
Managed Downloads: 5639
Most Recent Download: 12/1/2016
Download Mirrors: 4
Current Delay: 22 Seconds
Driver License: GNU

Direct Download Success Stats:

Reports Issued By 292/319 Users

Success Reported By 74/292 Users

Driver Download Score67/100

Driver Installation Score64/100

Overall preformance Score69/100

Krt A21 25 Thumbs Up25Thumbs
Krt A21 7 Thumbs Down7Thumbs
Krt A21 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 5243/5639 Users

Success Reported By 4521/5243 Users

Driver Download Score95/100

Driver Installation Score99/100

Overall preformance Score94/100

Krt A21 4231 Thumbs Up4231Thumbs
Krt A21 395 Thumbs Down395Thumbs
Krt A21 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 Krt A21 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 Krt A21 + all other outdated drivers, and installs them all at once.

Please help us maintain a helpfull driver collection.
After downloading and installing Krt A21, 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.

Krt A21 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 Krt A21 disfunctions.

Scan performed on 12/4/2016, Computer: HP 23-b340ef

Outdated or Corrupted drivers:9/19

Device/DriverStatusStatus DescriptionUpdated By Scanner
Intel(R) ICH10 Family PCI Express Root Port 6 - 3A4AUp To Date and Functioning
Mice And Touchpads
Microsoft Microsoft USB IntelliMouse OpticalUp To Date and Functioning
Logicool HID mouseOutdated
Genius HID-compliant mouseUp To Date and Functioning
Usb Devices
Atheros USB DeviceUp To Date and Functioning
OEM Feitian ROCKEY4 USBCorrupted By Krt A21
Intel(R) 7 Series/C216 Chipset Family Universal Serial Bus (USB) Controller - 1E31Corrupted By Krt A21
Sound Cards And Media Devices
Pinnacle Pinnacle PCTV 310i Capture DeviceCorrupted By Krt A21
Network Cards
Atheros LAN-Express AS IEEE 802.11g miniPCI AdapterCorrupted By Krt A21
Microsoft Keyboard Device FilterUp To Date and Functioning
Hard Disk Controller
USB Compliance USB DeviceUp To Date and Functioning
Google Nexus 4Outdated
Point Grey Research Texas Instruments OHCI-kompatibel IEEE 1394-vertskontrollerUp To Date and Functioning
Cameras, Webcams And Scanners
Canon CanoScan 3200/3200FUp To Date and Functioning
Video Cards
Intel Video Controller (VGA Compatible)Up To Date and Functioning
Input Devices
Lenovo ThinkPad USB Travel Mouse (HID)Corrupted By Krt A21
Port Devices
Alcatel MT6235Up To Date and Functioning
Sony Digital Flat Panel (1024x768)Outdated
Mobile Phones And Portable Devices
Acer NOKIAOutdated

Scan performed on 12/4/2016, Computer: ABook Z410

Outdated or Corrupted drivers:4/20

Device/DriverStatusStatus DescriptionUpdated By Scanner
Intel(R) processor Integrated Memory Controller Target Address Decoder - 2C99Up To Date and Functioning
Mice And Touchpads
SMART HID-compliant mouseUp To Date and Functioning
Microsoft Microsoft USB IntelliMouse ExplorerOutdated
Synaptics Mouse compatibile PS/2Up To Date and Functioning
Usb Devices
Microsoft USB Composite DeviceUp To Date and Functioning
Sound Cards And Media Devices
Broadcom Bluetooth Stereo AudioUp To Date and Functioning
VMware Creative AudioPCI (ES1371,ES1373) (WDM)Up To Date and Functioning
Network Cards
Huawei HUAWEI Mobile Connect - Network CardUp To Date and Functioning
Microsoft HID KeyboardUp To Date and Functioning
Hard Disk Controller
Intel(R) 6 Series/C200 Series Chipset Family 2 port Serial ATA Storage Controller - 1C08Up To Date and Functioning
Intel Intel(r) AIM External Flat Panel Driver 1Up To Date and Functioning
Intel Intel(r) AIM External TV Encoder Driver 0Corrupted By Krt A21
NEC Generic CardBus ControllerUp To Date and Functioning
Intel Intel(r) AIM External TV Encoder Driver 5Up To Date and Functioning
Cameras, Webcams And Scanners
USB2.0 PC CAMERA Periferica video USBUp To Date and Functioning
Video Cards
ATI RADEON X300 Series SecondaryCorrupted By Krt A21
Input Devices
Microsoft Microsoft Hardware USB MouseUp To Date and Functioning
Port Devices
MediaTek MediaTek PreLoader USB VCOM Port (COM51)Corrupted By Krt A21
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
Krt A21 P821.17810/9/201412/28/2015krt_a21-p821.178.exe114kbMCJ MCJ, HP HP 655 Not3book PC, Sony VGN-TZ47FN, ECS HDC-I, Zoostorm 7876-0310B, Pegatron C17B, NEC PC-MJ18XAZEZXS9, Acer Veriton M688G, Olidata OLIDATA, Seneca PRO02421, HP RP847AA-ABZ, HP HP Pavilion dv9700, NEC PC-VY16AEDAMFL2, Intel SE7505VB2, DEPO DEPO_VIP_M8710, and more.
Krt A21 1.132.1779/19/201412/28/2015krt_a21-1.132.177.exe165kbHP BK175AA-ABA HPE-270f, Compaq ER100AA-ABA SR1625NX NA541, IBM System x3200 M3 -[7327Z29, HP HP EliteBook 6930p, Sony VPCF1290X, Fujitsu PRIMERGY TX140 S1, LG C400-G.BC25P1, HP HPE-430it, Gateway 7310MC, Toshiba PORTEGE R600, HP KT334AAR-ABA m8530f, ASUS L8400F series Notebook PC, Sony SVE15138CGS, Sony VGN-Z21WN_B, HP RZ433AA-ABV, Compaq DA309A-B14 6540. BE910, WIPRO Wsg15886, NEC PC-LL770BD, Toshiba SATELLITE PRO C50-A-1M3, and more.
Krt A21 V409988/29/201412/27/2015krt_a21-v40998.exe60kbGateway P-6317 HSN, Panasonic CF-SX2JE4DS, NEC PC-VY16AEDERFW1, Toshiba SATELLITE PRO L870-179, HP HP Compaq 8710w, Sony VGN-FW180FU, HP HP ENVY 17 3D Notebook PC, ASUS K84L, Toshiba Dynabook EX/66MWHS, Compaq PW783AA-ACJ SR1425IL FD440, Sony VPCEL15EN, MSI MSI Notebook EX630, IBM 23731G2, Compaq KT310AA-AB4 SR5490CF, Panasonic CF-19FHLAXAM, and more.
Krt A21 GIADA, IBM 2672M3G, Packard Bell PACKARD BELL F806, NEC PC-LS350LS1YG, Olidata OLIDATA, Lenovo 6463Y3W, HP 520-1070uk, HP P5282A-ABA 9995, Sony PCV-HS72B, HP PS227AA-ABE, and more.
Krt A21 Q1.122.1079/12/201412/27/2015-q1.122.107.exe81kbLG S1-P655R1, Panasonic CF-30CCQCZBM, Dell S5400SF, HP HP ENVY13 Notebook PC, Compaq RZ569AA-ABZ SR5039IT, IBM 265244G, LG R200-D.CPF1A9, NEC PC-MY26XFREJ, Sony VGN-AR51J, Lenovo 6075Y5X, Sony VGN-UX1XN, WIPRO WNBOBM4901-0022, and more.
Krt A21 81.13931/14/201512/27/2015krt_a21-81.1393.exe129kbHP PS303AA-ABH, Intel D2500CC, Acer NC-V5-571P-53338G75MASS, HP HP Pavilion dv1000, Packard Bell IMEDIA B2501 BE, HP P6-2455eb, HP FL399AA-ABZ m9495it, IBM 6223Y32, Lenovo ThinkPad Edge 11, Sony VGN-FE24SP, Panasonic CF-30FTSAZN2, and more.
Krt A21 40221.111/14/201412/27/2015krt_a21-40221.1.exe25kbIBM System x3630 M3 -[7377AC1, Sony VGN-CS62JB_R, Sony PCG-K35, HP Compaq Presario Notebook PC, Sony VGN-FW26T_B, HP LX909ES#ABZ, HP FR598AA-ABE IQ512es, Compaq DW212A-UUW S6100ND SC410, Lenovo 6072Y76, Compaq DW212A-UUW S6100ND SC410, Lenovo ThinkPad Edge E530, Sony VGN-FE770G, NEC PC-VN790FS, Notebook RIM2050, and more.
Krt A21 VPCF128FJ, SIE 840_P3, HP HP Pavilion TS 10 Notebook PC, HP RF759AA-ABF s7640.f, HP Presario V5000, LG B70PS.AR38B3E, HP HP Compaq nc4200, ASUS U24E, Toshiba Satego P100, Fujitsu FMVNS3EE, and more.
Krt A21 K432.12811/25/201412/28/2015itorycy-k432.128.exe98kbToshiba Dynabook CX/45AB, Fujitsu FMVLX70WDJ, Sony VGN-SZ1XP, IBM System x3650 M4 : -[7915E3G, Dell Vostro 5470, IBM 8315B1U, HP EP127AA-ABD a123l, IBM 26478RG, IBM ThinkCentre A51, HP Db234a-abg 504a, IBM 8115KUT, Sony PCG-GR5F_BP, HP Compaq nx9040, and more.
Krt A21 202472/6/201512/29/2015lwa-20247.exe163kbSony VPCF13S0E, Gateway FX7026, HP RZ412AA-ABZ, Sony VPCEA1S1R, ASUS CG5290, Lenovo ThinkCentre M92p, LG R380-A.APC4BA3, Compaq PX629AA-ABU SR1429UK GB520, NT Computer ACCENT Q 6600/501, Packard Bell IMEDIA H5689, Packard Bell EasyNote TK36, IBM 8184LG1, Compaq KY718AA-UUB CQ3058HK, Sony VGN-CR35T_B, HP P6563sc, ASUS K50IJ, Acer Veriton M200-Q57, Toshiba Dynabook Qosmio D710/T5BB, and more.
Krt A21 608849/22/201412/29/2015krt_a21-60884.exe141kbSAMSUN R710, Haier T5B, Toshiba Dynabook AX/3527CMSB, Compaq PJ536AA-ABA SR1265CL NA441, MiTAC 9525, Toshiba Satellite S50-A0317, Sony SVT21219DJB, Lenovo ThinkCentre A63, Sony VGN-TZ33_B, Compaq PX631AA-ABU SR1440UK GB520, ASUS G750JW, NEC PC-LL560MG6BL, HP HP Pavilion dv5000, HP FK861AA-AB0 a6625tw, IBM 8142LU2, Fujitsu FMVD53C011, ASUS F6Ve, and more.
Krt A21 42602.112/4/201412/29/2015krt_a21-42602.1.exe98kbHP KT334AAR-ABA m8530f, ASUS L8400F series Notebook PC, Sony SVE15138CGS, Sony VGN-Z21WN_B, HP RZ433AA-ABV, Compaq DA309A-B14 6540. BE910, WIPRO Wsg15886, NEC PC-LL770BD, Toshiba SATELLITE PRO C50-A-1M3, LG E500-K.APCAY, HP 500-108eo, HP Presario 2200, and more.
Krt A21 O321.12.1410/29/201412/29/2015krt_a21-o321.12.14.exe112kbHP RY873AAR-ABA a6028x, Sony VGN-SR190P, NEC PC-VJ25AEZ78, Samsung 305E4A/305E5A/305E7A, IBM 2656D7G, HP HP PAVILION DV9000 KP950EA#ABF, Fujitsu FMVFER, Packard Bell Imedia S3250, Lenovo ThinkCentre M82, Fujitsu M6VCG, Toshiba Dynabook R634/E25K, Packard Bell IMEDIA X96844, Toshiba Satellite C660-2KF, and more.
Krt A21 1.1082.149/8/201412/30/2015krt_a21-1.1082.14.exe60kbFujitsu FMVLX50LX, HP Compaq 516, HP HP Pavilion dv9500, Compaq DT260A-ABU S5210UK GB340, NEC PC-MY28VLZEJ, HP D7222T-ABA A350E, HP M8417c-ABA m8417c, Compaq GT701AA-ACJ SR5250IL, HP 110-010xt, Toshiba Satellite C855-S5194, Sony VGN-CR21S_P, and more.
Krt A21 236711/19/201412/30/2015krt_a21-2367.exe186kbHP AU917AA-ABL e9270f, HP S5-1028hk, Northern Micro P4865G-M-AS, Prosys Prosys, IBM 1860WR7, NEC PC-VN570BS1YB, Packard Bell ENLS44HR, Toshiba SATELLITE C855-2G1, HP P2-1191d, IBYTE Udp gn naxos-i1l, Packard Bell EasyNote TK36, LG R380-A.APC4BA3, Packard Bell PBIPGX, Packard Bell IMEDIA H7612, Toshiba SATELLITE C55-A-1CR, Sony PCG-Z1XMP, and more.
Krt A21 222.1881/5/201512/29/2015dcgzz-222.188.exe87kbHP RR496AA-ABU, HP H9-1161ez, Toshiba SATELLITE L850-A902, Epson Endeavor AT205, Seneca Pro38611, Sony VGX-X90P, Panasonic CF-SX1WEVHR, Sony PCG-TR3_B, HP AZ205AAR-ABA p6300z, Panasonic CF-53AAC01FD, HP KT394AA-AB4 S3580D, Compaq BT466AA-ACJ CQ3211IX, Sony SVE1412ECXP, and more.
Krt A21 4272610/23/201412/27/2015krt_a21-42726.exe23kbIBM 8190LGJ, Lenovo ThinkCentre M57e, Dimotion PCDBS09P, Toshiba NB100, Lenovo ThinkCentre M81, Gateway GT4228m, HP HP Compaq 6510b, HP PN111AA-ABF t760.f, AT ALZA GAMEBOX, KOBIAN PI845GVM, and more.
Krt A21 2.131.1741/15/201512/29/2015krt_a21-2.131.174.exe93kbHP P6747ch-m, Lenovo 20B7S07L00, HP AZ205AAR-ABA p6300z, ASUS K84L, Packard Bell EASYNOTE MV86, Sony VGN-A39GP, IBM 1843A19, Packard Bell ISTART C5410 AIO, LG K1-337AB1, HP 100-5152, and more.
Krt A21 828022/9/201512/28/2015krt_a21-82802.exe218kbGateway DX442S, Sony PCG-Z1XMP, Samsung 200B4Z/S01TH, Sony VGNFW590GAB, Lenovo ThinkPad T430s, Lenovo FL6AXXX, Sony VPCEG15FL, IBM 26486G1, Compaq RF785AA-ABU SR2029 NA100, Packard Bell EasyNote_MX37-U-005, ASUS PRDLS533, Compaq DA309A-B14 6540. BE910, HP HP Pavilion dv9700, LG F1-2K39AB, HP PX688AA-B14, HP GU631AA-UUW, FIC ATM-Q45G, SYX SYX-DP67BG-Extreme, Toshiba SATELLITE C855-1QG, and more.
Krt A21 E21.1722/17/201512/27/2015krt_a21-e21.172.exe25kbCompaq BK129AA-AB4 CQ3230L, Sony VGN-FW250J, IBM 682466A, Mustek KDZ68DBM, HP HP ProBook 6560b, Avermedia 3150, HP HP ProBook 4520s, Olidata OLIDATA, Compaq GS255AV-AB4 SR5211CF, HP 100-5152, IBM Eserver xSeries 235 -[8671KAX, HP HPE-400es, HP HP ENVY17 NOTEBOOK, NEC PC-VJ22MAUZHTTV, HP HP d530 CMT, and more.
Krt A21 731.172.110/4/201412/28/2015krt_a21-731.172.1.exe110kbSony VGN-CS325J, MSI MS-1727, Compaq Presario 7132EA 470019-261, Lenovo ThinkCentre M58e, IBM 237319G, Lenovo ThinkPad X100e, Sony VGN-C140FP, Compaq AU852AA-ABM CQ5216LA, IBM 81387HG, HP AX351AW#ABA, Sony VPCCW1MFX, Packard Bell IPower X9200, HP AY690AA-ABM 600-1120la, Sony VGN-FW160AE, Compaq PX697AA-ABZ SR1419IT IT520, ASUS CS6110, and more.
Krt A21 U81.17942/1/201512/30/2015krt_a21-u81.1794.exe112kbSony VPCEL15EN, MSI MSI Notebook EX630, IBM 23731G2, Compaq KT310AA-AB4 SR5490CF, Panasonic CF-19FHLAXAM, HP Vd019aar-UUW, Compaq DA255A-ABA 6401RSH NA910, Sony SVE1712P1RB, Gateway FX6800-03h, Sony VGN-SZ61VN_X, IBM 8215A64, NEC PC-VK26MDZCE, and more.
Krt A21 732.162.111/18/201412/29/2015ferziikqn-732.162.1.exe103kbHP HP Compaq dc7100 SFF, IBM 2374KG5, Sony VGN-NS160D, HP EJ210AA-ABS, PrimeLine Professional-i7, LG LW75-SGGV3, HP PX662AA-AB9, LG S1-M223A8, Fujitsu A6220, Toshiba SATELLITE PRO C50-A-1HZ, Fujitsu FMV8NU1LC5, LG R490-K.ARA2BA3, Lenovo 9439Y5B, HP HP Compaq nc2400, Sony VGN-NW21EF_S, Lenovo ThinkPad Edge E530c, HP P7-1012, and more.

There is no particular operating system known to have specific problems with Krt A21
Laptop Krt A21Tablet Krt A21Download Krt A21Upgrade Krt A21Update Krt A212016 Krt A21Free Krt A21Data Krt A21Info Krt A21Help Krt A21Guide Krt A21Comments Krt A21Windows 10 Krt A21Vista Krt A21Windows 7 Krt A21Install Krt A21