dell Vostro laptop drivers

Tag # 5KJYQP1
reinstalling Windows 7 64 bit
cannot find the following drivers

this is what my device manager shows:
! Universal Serial Bus (USB) Controller
!Unknown device
!Dell Wireless 5620 (EV-DO-HSPA) Mobile Broadband Mini-Card Diagnostics (COM5)
!Dell Wireless 5620 (EV-DO-HSPA) Mobile Broadband Mini-Card NMEA (COM4)
jsarinanaI.T. ManagerAsked:
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arnoldCommented: is the place to download it.

Not sure what you are asking here beyond that.

Did not have a chance to use your tag to see whether windows 7 is an option Dell offered for your model.
☠ MASQ ☠Commented:
Go to the support site using your Service Tag
Make sure you've installed everything listed under Chipset
The Wireless 5620 drivers will be under Modems/Communication

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or - if you post the laptop model -  we can point you also to the drivers

if you don't find them for some reason; here's the methods i use :
Windows 7
if you have  unknown devices in device manager, you can use this procedure to identify them :

1- visit the motherboard manufacturers support site, for downloading drivers
2- use windows update >optional updates to find them

3- Start>Programs>Accessories>System Tools>System Information.
Now select  "Components" and highlight "Problem Devices".
All hardware devices with a driver problem will be listed here.
Make a note of the first line of the PNP Device ID line of the entry. It will show a Vendor number and a Device number (VENxxxxDEVxxxx) both four digits long.
Look up those numbers here:

This will tell you the manufacturer and the chip number.  
Check the manufacturer's website first or google them - or post them here

4- If your LAN is running, you can also use windows update> optional drivers, or  use a driver update software
Windows 8
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noxchoGlobal Support CoordinatorCommented:
Does it have USB3.0 ports?
Does it have a 3G module?
jsarinanaI.T. ManagerAuthor Commented:
installing all drivers under chip set helped
these are the two I have left:
 !Unknown device
 !Dell Wireless 5620 (EV-DO-HSPA) Mobile Broadband Mini-Card NMEA (COM4)

When I try to install driver located  under Modem/Communications
Dell Wireless 5620 EVDO-HSPA it will download which is a .zip file
when I try to extract it asks for a password
File "SystemID" is password protected Please enter the password in the box below.
☠ MASQ ☠Commented:
Are you downloading the firmware update in error?
The driver package should download as an .exe
this is the one

The other unknown device is likely to be the card reader (unless you know that's already working)
Look for Realtek RTS5138 Card Reader Driver under chipset.  If it's not this we can track down the device ID in Device Manager to identify it.
noxchoGlobal Support CoordinatorCommented:
Zip password protected? Is this driver from an official web site?
☠ MASQ ☠Commented:
It might be locked because it's expecting a Verizon set up who's you telecoms provider for the card?
jsarinanaI.T. ManagerAuthor Commented:
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