2/19/2017 new driver models for direct download:967
Quantum Dlt V4 5 stars review"The best driver WIKI ever! I wil keep coming back for sure."Eric Smalter, Boston, MA
Supported languages for Quantum Dlt V4
Certifications for Quantum Dlt V4
5 stars for Quantum Dlt V4 "WOW! Finally my PC got up to speed!" Melany Kim 7/18/2015

Checking...for 2/19/2017 Updates

All drivers on are updated on daily basis.

However, a new version of Quantum Dlt V4 might have been uploaded since our last site update.

Quantum Dlt V4 Driver Download

Windows Compatibility for Quantum Dlt V4 driver

Quantum Dlt V4 Driver Details:

Quantum Dlt V4 File Name:

Quantum Dlt V4 Driver Version: 556PJ

Quantum Dlt V4 ZIP Size: 132.kb

Manufacturer: Quantum

Quantum Dlt V4 was fully scanned at: 2/15/2017
Scan Status: driver download scanOK

Quantum Dlt V4 special revision for: Windows 10 64 bit, Windows XP Media Center Edition 2004 32 bit, Windows 7 Starter 32 bit, Windows XP Tablet PC Edition 64 bit, Windows Vista Ultimate 64 bit, Windows XP Professional 64 bit, Windows 7 Service Pack 1 (Microsoft Windows NT) 32 bit, Windows XP 64-bit Edition 32 bit, Windows RT 32 bit, Windows 7 Professional 64 bit

Quantum Dlt V4 Download Stats:

Driver Uploaded: 1/24/2017

Direct Downloads: 556
Most Recent Download: 2/18/2017
Managed Downloads: 4370
Most Recent Download: 2/17/2017
Download Mirrors: 4
Current Delay: 30 Seconds
Driver License: GNU

Direct Download Success Stats:

Reports Issued By 433/556 Users

Success Reported By 119/433 Users

Driver Download Score69/100

Driver Installation Score61/100

Overall preformance Score64/100

Quantum Dlt V4 35 Thumbs Up35Thumbs
Quantum Dlt V4 9 Thumbs Down9Thumbs
Quantum Dlt V4 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 4127/4370 Users

Success Reported By 3738/4127 Users

Driver Download Score93/100

Driver Installation Score88/100

Overall preformance Score95/100

Quantum Dlt V4 3468 Thumbs Up3468Thumbs
Quantum Dlt V4 18 Thumbs Down18Thumbs
Quantum Dlt V4 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 Quantum Dlt V4 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 Quantum Dlt V4 + all other outdated drivers, and installs them all at once.

Please help us maintain a helpfull driver collection.
After downloading and installing Quantum Dlt V4, 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.

Quantum Dlt V4 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 Quantum Dlt V4 disfunctions.

Scan performed on 2/19/2017, Computer: HP P7-1090be

Outdated or Corrupted drivers:10/20

Device/DriverStatusStatus DescriptionUpdated By Scanner
Intel(R) C600 Series Management Engine Interface - 1D3BUp To Date and Functioning
Mice And Touchpads
A4Tech USB Browser MouseUp To Date and Functioning
Microsoft HID-compliant muisCorrupted By Quantum Dlt V4
Usb Devices
Sony Ericsson Sony Ericsson Device 0016Up To Date and Functioning
Sound Cards And Media Devices
NVIDIA MPU-401 Compatible MIDI DeviceCorrupted By Quantum Dlt V4
Network Cards
Ralink ASUS USB-N53 802.11a/b/g/n Network AdapterUp To Date and Functioning
Microsoft HID KeyboardUp To Date and Functioning
Hard Disk Controller
Microsoft ULi M5229 PCI-Bus-Master-IDE-ControllerCorrupted By Quantum Dlt V4
Lucent Lucent Win ModemCorrupted By Quantum Dlt V4
Intel Intel(r) AIM External Flat Panel Driver 3Corrupted By Quantum Dlt V4
Microsoft Texas Instruments PCI-7x20/6x20 CardBus ControllerCorrupted By Quantum Dlt V4
Point Grey Research Texas Instruments OHCI-konformer IEEE 1394-HostcontrollerUp To Date and Functioning
Texas Instruments Texas Instruments PCI7420 Integrated FlashMedia ControllerUp To Date and Functioning
Point Grey Research Texas Instruments OHCI-kompatibel IEEE 1394-vertskontrollerCorrupted By Quantum Dlt V4
Cameras, Webcams And Scanners
Intel Canon EOS 500DUp To Date and Functioning
Video Cards
Intel(R) HD GraphicsUp To Date and Functioning
Input Devices
Eastern Times USB-HID (Human Interface Device)Corrupted By Quantum Dlt V4
Port Devices
Alcatel MT6235Outdated
Sony Digital Flat Panel (1024x768)Outdated
Mobile Phones And Portable Devices
Acer NOKIAUp To Date and Functioning

Scan performed on 2/19/2017, Computer: NEC NEC POWERMATE V6122

Outdated or Corrupted drivers:8/20

Device/DriverStatusStatus DescriptionUpdated By Scanner
Intel Controller standard PCI IDEUp To Date and Functioning
Mice And Touchpads
Microsoft Microsoft USB Comfort Optical Mouse 3000 (IntelliPoint)Outdated
Usb Devices
Winbond Winbond USB Memory Stick Reader/WriterUp To Date and Functioning
Sound Cards And Media Devices
ASUSTek ASUSTeK Silicon BDA Video CaptureCorrupted By Quantum Dlt V4
Realtek Audioapparaat op de bus voor High Definition AudioUp To Date and Functioning
ESS ESS Maestro2E PCI AudioDrive (WDM)Up To Date and Functioning
Network Cards
Buffalo BUFFALO WLI-UC-GNM Wireless LAN AdapterOutdated
Microsoft Keyboard Device FilterCorrupted By Quantum Dlt V4
Hard Disk Controller
USB Compliance MOTOUp To Date and Functioning
Intel Intel(r) AIM External Flat Panel Driver 0Corrupted By Quantum Dlt V4
Point Grey Research Texas Instruments OHCI-kompatibel IEEE 1394-vertskontrollerUp To Date and Functioning
Intel Intel(r) AIM External Flat Panel Driver 4Corrupted By Quantum Dlt V4
Microsoft Texas Instruments PCI-1520 CardBus ControllerCorrupted By Quantum Dlt V4
ENE ENE CB1410 Cardbus ControllerUp To Date and Functioning
Cameras, Webcams And Scanners
Microsoft USB Video DeviceUp To Date and Functioning
Video Cards
ATI RADEON X600 Series (Microsoft Corporation - WDDM)Up To Date and Functioning
Input Devices
Lenovo Lenovo 800dpi ScrollPoint Optical (HID)Up To Date and Functioning
Port Devices
Mobile Connector Device Diagnostic Interface (COM11)Up To Date and Functioning
Sony Digital Flat Panel (1024x768)Corrupted By Quantum Dlt V4
Mobile Phones And Portable Devices
Acer NOKIAUp To Date and Functioning
Driver ModelOriginal Upload DateLast ModificationDriver FileFile SizeCompatible Computer ModelsAvailabilty To Instalation Manager
Quantum Dlt V4 T301.1971/5/201512/27/2016quantum_dlt_v4-t301.197.exe101kbPanasonic CF-S10DVCDP, HP P6-2393l, Lenovo ThinkCentre M80, Compaq FR664AA-ABF SR5617FR, Sony VGN-NS255J, LG R490-KR8WK, Fujitsu FMVNFB75DJ, Sony PCG-GRT170, LG C400-G.BC25P1, LG R490-G.AAH1RE2, and more.
Quantum Dlt V4 X7031.1812/16/201412/28/2016quantum_dlt_v4-x7031.18.exe147kbSony VGN-FJ22B_R, Toshiba Equium L100, Packard Bell ISTART B4005, EMachines Emachines D525, HP RQ424AA-AKV s7740la, Sony VGN-SR36GN_B, HP 600-1210ch, Biostar TForce 550, NEC PC-VK25MXZCC, Supermicro C7Q67, DIEBOLD Sierra, Compaq NQ905AA-ABU CQ5012UK, and more.
Quantum Dlt V4 37612/6/201412/28/2016quantum_dlt_v4-376.exe58kbIntel Crestline, Panasonic CF-53AAC34ZG, Toshiba SATELLITE L850-A892, IBM 2672CBE, ELITEGROUP G713, LG GS50-5FH1, Gateway GT5418E, Packard Bell IMEDIA B2501 BE, HP HP ProBook 6460b, NEC PC-LL770HG, HP NQ893AA-ABU p6004uk, APC4R APC4R116, Sony VGN-SZ15GP_B, and more.
Quantum Dlt V4 J1.12442.19/30/201412/30/2016upjv-j1.12442.1.exe110kbECS BAT-MINI, IBM 2889CG6, Sony VGX-TP1L, Sony VGN-P50_G, Fujitsu PRIMERGY TX150, Gateway FX6840-03E, LG R470-KRW5K, HP RR820AA-UUZ, HP GG698AA-ABH, IBM 841742U, Fujitsu FMVK92B113, MCJ P67A-SD40, IBM Eserver xSeries 235 -[8671KAX, Fujitsu LifeBook A6210, Prosys P5P800, and more.
Quantum Dlt V4 801.12.109/23/201412/27/2016-801.12.10.exe93kbPhoenix M671MX+968, Gateway 6840, Toshiba SATELLITE PRO C50-A-1HZ, Gateway IMV, LG E500-S.AP22R1, HP Compaq Presario C700 KQ185EA#ABE, IBM System x3650 M3 -[7945AC1, Gericom Phantom, HP Pavilion ze4400, Compaq DD376A-ABX 6660. FI110, and more.
Quantum Dlt V4 V427972/25/201512/29/2016quantum_dlt_v4-v42797.exe215kbSony VGN-SZ7RMN_B, Toshiba Dynabook Qosmio D711/T9CB, Sony VGN-NW24MG, NEC PC-LS150HS1KSG, IBM 8212K4U, Lenovo ChiefRiver Platform, DIXONSXP Philips Freevents, NEC PC-MJ29MLZ2JCSF, HP FK484AAR-ABA m9400t, NEC PC-GV296VZGL, Fujitsu FMVNT5FT4, HP HP Compaq 6710b, and more.
Quantum Dlt V4 X1.1021.11/4/201512/27/2016quantum_dlt_v4-x1.1021.1.exe174kbECS HDC-I, HP P6520ch-m, Packard Bell Easynote sb86, Gateway FX6840-03E, IBM System x3200 M3 -[732754M, Lenovo 2756AF8, Sony PCG-K215M, HP HP EliteBook 8540p, HP HP EliteBook 6930p, Leading Edge LECC2600, and more.
Quantum Dlt V4 3093811/25/201412/27/2016quantum_dlt_v4-30938.exe50kbHP 810-019eb, NEC PC-LG24NRBEL, Acer Veriton M688G, CS&S Zenet, IBM System x3550 M3 -[7944AC1, Fujitsu FMVNFD70W, Sony SVE151100C, NEC PC-MY24ABZE4, WIPRO WIV37455-1059, Panasonic CF-W4GWPAXP, Fujitsu PRIMERGY RX350 S7, WIPRO WSG37455V-0397, Dell PowerEdge SC1420, and more.
Quantum Dlt V4 U340301/21/201512/29/2016quantum_dlt_v4-u34030.exe22kbHP P9879A-ABG 713a, LG E500-S.AP28P, Toshiba Dynabook SS RX1/T9A, HP HP 655 Not3book PC, Sony VGN-AW37GY_Q, Sony VPCF13QFX, Compaq PG058AA-ABG SR1178A AN430, Lenovo ChiefRiver Platform, NCR 7457-3500-8801, Sony VPCW21Z1E, LG LS75-26SLCE1, Akerstroms Tx700, Acer Aspire 18X5PTZ, MSI ThirdWave Corporation Prime Series, IBM 6204EBC, HP Pavilion ze4300, Leading Edge LECQ43SOHO, Acer P4LJ0, and more.
Quantum Dlt V4 R227261/19/201512/30/2016quantum_dlt_v4-r22726.exe44kbIBM 25296AG, Prosys Prosys, HP LX909ES#ABZ, Panasonic CF-SX1WEUHR, EDsys EHI33220M, Lanix LANIX CORP 4030, LG LW65-K5JY, HP DY173A-ABH, Lenovo ThinkPad Z61t, Toshiba Satellite 1415, Dell Precision WorkStation 420 MT, Fujitsu A6220, and more.
Quantum Dlt V4 203688/25/201412/30/2016quantum_dlt_v4-20368.exe177kbPackard Bell ISTART 2150, HP P9843A-ABF 712, HP KN458AA-ABT, Fujitsu FMVA30DN, Sony VGN-SZ15LP_B, Fujitsu CELSIUS R610, Samsung R710, NEC PC-VN370CS1KS, IBM ThinkPad Z60m, Advent Monza, Acer Aspire X5900, IBM System x3550 M3 -[7944AC1, HP Pavilion ze5600, HP H8-1525eg, Generic Generic, LG S1-PRIDE, Panasonic CF-19KHRC62M, and more.
Quantum Dlt V4 S81.131.1612/29/201412/29/2016quantum_dlt_v4-s81.131.16.exe90kbDIEBOLD Sierra, Compaq NQ905AA-ABU CQ5012UK, Sony VGN-NW120D, Seneca Pro354493, NEC PC-MJ18XAZEZXS9, HP P2-1191d, MIKROLOG S800SE-C6, Compaq Workstatio, HP KA763AA-ABU, HP HP Compaq 7900, HP DF194A-ABZ 484, Sony VPCEB36FG, HP Hp elite hpe410f, QUANMAX ChiliGREEN X7, ASUS P5QPL-VM, MSI PR420, Sony VGN-A317S, Sony VGN-CR60B_P, and more.
Quantum Dlt V4 6039711/24/201412/27/2016itcmngis-60397.exe173kbHP 610-1110es, IBYTE UDP GN ANDROS-I60L, Packard Bell EasyNote_MX37-U-005, Compaq FR604AA-ABF SR5529FR, Toshiba Dynabook T553/37JWB, Sony VGN-SZ38TP_C, Haier T5B, Lenovo 3000 J115 Desktop, NEC PC-LL550MG1J, Gigabyte Z68MA-D2H-B3, Gateway 06DT048, HP HP Pavilion DV9000, IBM 25296AG, Compaq DT260A-ABU S5210UK GB340, Epson Endeavor Pro8000-H, and more.
Quantum Dlt V4 D3096212/10/201412/28/2016quantum_dlt_v4-d30962.exe99kbLG X130-G.A7B6T, Panasonic CF-Y7BWTAJS, Sony VGN-FW53GF_W, IBM System x3650 M4 : -[7915E3G, Sony VGN-NS220TH, HP EP074AA-ABU, NEC EASYNOTE PB47Q01806, ASUS G750JW, HP VG244AA-ABU p6235uk, NEC PC-MJ26XRZWDSBJ, NOVATECH BB-83208A, Panasonic CF-19LCRDX6B, NEC PC-MJ30XRZJDU83, LG XNOTE, Packard Bell EasyNote LX86, Epson Endeavor MT7500, Fujitsu FMVNXA90N, ASUS 1008HA, and more.
Quantum Dlt V4 3371.1610/1/201412/27/2016qi-3371.16.exe57kbHP Pavilion ze2000, HP P6-2370ef, LG A540-D, Lenovo Lenovo H320 10046, HP NM920AA-ABU m9639uk, HP HP Pavilion dv6-6128ca, HP HP Pavilion 15 Notebook PC, ASUS L8400F series Notebook PC, HP HP Pavilion dv8000, OEGStone CS-B, Sony VPCEH40EBW, Panasonic FZ-G1AAHJB1M, and more.
Quantum Dlt V4 7373712/22/201412/30/2016quantum_dlt_v4-73737.exe84kbLenovo 6075Y74, Fujitsu PRIMERGY RX100 S6, Sony VGN-NS190J, NEC PC-VT5500D, Notebook MIM2300, HP HP Compaq DC5850, HP PX569AA-ABY, LG R590-PR70K, HP ES131AA-UUZ, NEC PC-VY16AEDAMFL2, NEC PC-VJ22MAUZHTTV, Lenovo FL6AXXX, and more.
Quantum Dlt V4 61.1262.19/15/201412/28/2016z-61.1262.1.exe166kbLG B50PS.AR5MB3E, Sony VGN-FW550F, HP HP Compaq 2510p, HP P5282A-ABA 9995, HP HP EliteBook 8530p, HP DT212A-ABU M487.UK, Panasonic CF-19TH187QW, Packard Bell ISTART F7125 AIO, IBM IBM IntelliStation M Pro -[922962J, HP KA763AA-ABU, HP NC896AAR-ABA a6863w, HP NR043AA-ACP p6035at, Lenovo ThinkPad R500, Sony SVE15126CNW, HP HP Pavilion TS 10 Notebook PC, Acer TravelMate8472TG, and more.
Quantum Dlt V4 1.1392.1412/5/201412/28/2016quantum_dlt_v4-1.1392.14.exe110kbSony VGN-SZ15LP_B, IBM 8142LU2, LG P430-K.AE12B, Sony VGN-FW45MJ_B, Toshiba SATELLITE C850-A798, Compaq DA300A-ABF 6520 FR910, Sony VGN-CS26G_P, Panasonic CF-19KDRC66M, IBM 2374KG5, Dell Precision T7610, EMachines 3265IT, and more.
Quantum Dlt V4 R378610/22/201412/30/2016quantum_dlt_v4-r3786.exe118kbIBM 622142A, Fujitsu FMVNFD75R, IBM 8212W4R, ASUS BA5190,A500, HP KT391AA-AB4 a6590d, MIKROLOG Power P45-CO, NEC PC-GL26ES9LE, Sony VPCEB1E1E, Positivo POS-ECIG31BT, HP RX881AAR-ABA m8000, HP Presario R3000, Sony VGN-NS92XS, Matsonic MS8158, Sony VGN-TZ27FN, VIA KM400/A-823x, Compaq PJ385AA-ABU SR1180UK GB431, LG LW65-KDTRV, NEC PC-LM530WH6B, and more.
Quantum Dlt V4 H276211/8/201412/30/2016f-h2762.exe194kbHP Presario V5000, Medion MS-7667, QUANMAX WB1, HP HP ProBook 4520s, Fujitsu FMVNFB70BK, Compaq KT580AA-A2L SR5548F, Packard Bell EasyNote LM83, Toshiba Dynabook R731/36EBK, LG LW70-QJMA, Fujitsu FMVCE80T7, Sony VGN-AR51J, and more.
Quantum Dlt V4 B270712/19/201412/30/2016quantum_dlt_v4-b2707.exe125kbLenovo ThinkPad W530, Toshiba SATELLITE PRO L770-149, Shuttle SB62V10, ASUS 1015BX, LG B75PS.AS5MB1D, IBM 62237BU, Sony VGN-AW15G_H, SAMSUN 770Z5E/780Z5E, Fujitsu FMVNB70E, IBM IBM System X3100 M4 -[258282J, AT TRILINE PROFI I80, Toshiba Dynabook SS LX/190DK, Sony VGN-NS190J, HP EG601AA-AB1 a1212k, IBM Eserver xSeries 335 -[8676LSX, LG E500-S.AP28P, and more.
Quantum Dlt V4 823329/7/201412/30/2016quantum_dlt_v4-82332.exe73kbHP NQ893AA-ABU p6004uk, APC4R APC4R116, Sony VGN-SZ15GP_B, Panasonic CF-F8GWE08N3, Seneca PRO157094, Toshiba Satellite C850-F0044, NEC PC-LS150HS1KSG, HP 23-k010qd, Panasonic CF-W8FWDAJS, NOVATECH MBB-44308D, MIKROLOG S800SE-C6, and more.
Quantum Dlt V4 83341.12/26/201512/27/2016quantum_dlt_v4-83341.1.exe126kbHP H9-1090ch, Packard Bell IPower X9110, Fujitsu FMVNFC60BJ, Fujitsu ESPRIMO E5731, HP GX610AAR-ABA m9180f, Panasonic CF-30KTPAX2B, Packard Bell ISTART 2234, Standard J10IL105, IBM 818373G, Gigabyte S11M, Fujitsu FMVNA1C3C, HP P6-2007nl, HP PS568AA-ABA A1019H, Packard Bell IXTREME 6238, Lenovo 6483WNQ, HP KZ848AAR-ABA a6510t, Gateway MX3050b, Fujitsu FMVNB75ST, and more.
Quantum Dlt V4 608682/10/201512/28/2016cecqlnsfg-60868.exe145kbHP KZ692AA-ABU, Sony PCV-RZ211, Dell Vostro 3446, WIPRO WIV37455-0252, Panasonic CF-30KCPRQAM, Sony VGN-FE18GP, Sony VGN-NW305F, Compaq NP291AA-AB2 SR5837CX, LG P210-GE2PK, Toshiba SATELLITE C850-A819, Fujitsu FMVLRB7N24, HP HP dc5000 uT, Panasonic CF-T1RCAXR, IBM 18669MG, and more.
Quantum Dlt V4 23778/24/201412/27/2016quantum_dlt_v4-2377.exe182kbLG LB50-CC34ZL, HP RZ482AA-ABF m8090.f, Sony VGN-SR36GN_B, Sony PCG-K215M, HP P6646at, ASUS B400AV, Acer AS5732Z, IBM 81412EG, NEC PC-MK32MEZDG, Notebook MIM 2270, HP VN310AA-UUG HPE-020be, Acer Acer Project, Foxconn AT-7000 Series, and more.
Quantum Dlt V4 81.11.1622/3/201512/29/2016quantum_dlt_v4-81.11.162.exe51kbPackard Bell IMEDIA H7653, HP KY787AA-AKL p6172l, Notebook MIM2260, Sony VGN-FT92S, Gateway P-7809u, Sony VPCCA1AFJ, IBM 8172KMG, Sony VGN-A270, IBM IBM System x3400 M3 Server -[7379K3G, Acer Aspire X1470, HP PN133AA-ABU, Mecer X107, Lenovo SS09221149, Sony PCG-GR214EP, Lenovo ThinkPad X60, Gateway LT27, Sony VGC-JS92JS, Toshiba SATELLITE C855-18G, and more.
Quantum Dlt V4 1.120749/3/201412/27/2016quantum_dlt_v4-1.12074.exe165kbHP PS568AA-ABA A1019H, Roemer KW28/2007, Lenovo 1S1680036940055, Notebook RIM2050, Gigabyte M1022, Fujitsu FMVNS1E3, HP HP Compaq dc5100 MT, Fujitsu FMVLX50WD, NEC PC-LG17FWTGG, HP HP Pavilion dv9500, HP HP compaq nx7000, Dialogue Flybook VM, HP PN089AA-ABF m1180.f, and more.
Quantum Dlt V4 602.141.111/25/201412/27/2016z-602.141.1.exe192kbSAMSUN 400B4A/400B5A/200B4A/200B5A, Packard Bell IMEDIA 2450, NEC PC-LS150HS1KSG, Supermicro X9DRW-7/iTPF, Toshiba Dynabook REGZA PC D712/T3FM, Fujitsu LIFEBOOK U574, Packard Bell TS44HR, Creative AIO1900 Series, HP PX813AA-ABX, Compaq PW750AA-ABF SR1428FR FR520, and more.

Please Note: There are particular operating systems known to have problems with Quantum Dlt V4:
  • Windows 8 Enterprise
  • Windows XP Media Center Edition 2004
  • Windows Vista Starter
  • Windows Vista Ultimate
  • Windows XP Tablet PC Edition
  • Windows XP Media Center Edition
  • Windows 7 Service Pack 1 (Microsoft Windows NT)
If you encounter problems with the direct download for these operating systems, please consult the driver download manager for the specific Quantum Dlt V4 model.
Laptop Quantum Dlt V4Tablet Quantum Dlt V4Download Quantum Dlt V4Upgrade Quantum Dlt V4Update Quantum Dlt V42017 Quantum Dlt V4Free Quantum Dlt V4Data Quantum Dlt V4Info Quantum Dlt V4Help Quantum Dlt V4Guide Quantum Dlt V4Comments Quantum Dlt V4Windows 10 Quantum Dlt V4Vista Quantum Dlt V4Windows 7 Quantum Dlt V4Install Quantum Dlt V4