Question about Sony VGN-SZ491N/X PC Notebook

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I have a sony vaio vgn-sz491n. i have loaded windows 7 professional, 64bit onto it. in the device manager, it shows that a driver for a mass storage controller is missing. where can i find this driver. keywords: sony vaio vgn-sz491n windows 7 professional 64bit 64 bit missing mass storage controller driver

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Most likely missing a driver for SD/MC card reader
The problem is that Sony doesnt offer drivers for 64-bit windows so the other 32-bit drivers will not be compatible.
You have the options to install the windows versions supported by sony from esupport.sony.com (Vista or XP)
Or try installing windows 7 32-bit and installing the missing drivers from esupport (Vista section) as usually they are compatible.
If the driver is still missing you will need to update the driver from device manager (previously installed from esupport) and then select to browse or select a location, which will be %temp% or what is the same the temp folder for your account C\users\your_user_name\appdata\temp. This folder is usually hidden but it will work if you just type %temp%

Posted on Mar 25, 2011

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Posted on Jan 02, 2017

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1 Answer

Hi! I installed windows 7 on Sony VGN NW150J and my web camera does not working. Drivers from sony official site doesnt help. in device manager I see Base System Device which is unknown. help me,pleace....


Hey,

Make sure you are downloading the correct driver for your webcam, and make sure that if you are installing 64bit windows 7 that you have a 64bit driver, and same with 32bit (im sure you are, but double check just in case).

If you are 100% sure of that, have a look through the drivers page for your laptop and look for a "chipset" update of some sort.

Hope this helps :)

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Try install the WEBCAM driver for you Sony VAIO found here:
http://b2b.sony.com/b2bMicrosites/landingpage/vaio_drivers/download_vaio_drivers.html

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What is the processor in your Vaio? If it's dual core 64bit will be OK.
Have you downloaded the 64bit version of the driver? If not, it won't work and I'm not sure there is one on 64bit.
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Mass storage device driver of sony vaio vgn-n365e for windows 7


Hi,

The drivers for Windows 7 are not released by Sony. However, my experience says installing the Vista drivers will do the trick. I will tell you which all drivers to install in the computer to for mass storage device. Please install the drivers in the same order:

http://esupport.sony.com/US/perl/swu-download.pl?mdl=VGNN365E&upd_id=2653&os_id=28

http://esupport.sony.com/US/perl/swu-download.pl?mdl=VGNN365E&upd_id=2663&os_id=28

http://esupport.sony.com/US/perl/swu-download.pl?mdl=VGNN365E&upd_id=2670&os_id=28

http://esupport.sony.com/US/perl/swu-download.pl?mdl=VGNN395E&upd_id=2818&os_id=28


Thanks!!!!

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I have this same computer. Didn't it come with 32-bit Vista, cause mine did. The hardware of the camera may not be compatible with 64-bit. Also, did you do a clean install? Cause that's what I did by mistake when installing Windows 7 and none of my hardware worked. I ended up switching back to Vista because Sony did not provide any drivers for Windows 7 for this computer.

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Sony Vaio VGN-FE770G windows 7 upgrade problems


hello, try the link below;

ftp://download.sony.com/US/pc/TIDMSC-01424702-US.EXE

the driver above is for vista and should work with windows 7.
I hope this helps.
Kind regards,

Amar Sondhi

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