New Win7 installation - SD card not working  

I also have the same problem with windows 7. I have a Sony vaio laptop model VGN-FZ190 and once I installed windows 7 my built in sd card read and my external sc card reader stop working. the external reader is a epraizer UP-850 62 in 1 SIM Card Reader.
But I will say I was very impressed with windows 7. I never had to install any Sony drivers , windows 7 installed all the drivers and everything worked except my sd card reader and my built in web cam. Much better than all other version of windows.

Most SD Cards are pre-formatted with the old ‘Fat’ format system.
I kept getting the 'old format before use' error at work when trying read SD Card on Laptop running only Win7, however later at home on dual XP/Win7 the SD Card was read without any problems. I’m not sure but is Win7 – Fat compatible?

I have a Sony vaio laptop model VGN-FZ190 and I installed windows 7 on it. Now my sd card reader that is built into
My laptop does not work. And my external card reader also does not work. The external card reader is a epraizer up-850.
Windows 7 has it listed as a ehome infrared receiver (USBCIR) and the device status listed is (this device cannot start (code 10)
Any suggestion?

is there a way use xp/vista in windows 7 with some kind of compatibility mode?

SD-card read error -

after further testing on 3 sd-card readers, 2 of which are less than 2 years old the other removed from an ancient 'Time' PC idicates it's age. Within Win7 the first 2[newish] both read data and media, the old unit only reads media.
My thoughts here are moving towards out of firmware.
I did a quick scan a cross the net and came across firmware updates for various 'Card-readers'
As firmware in both the newish cards are up to date, and I'm unable to locate combatible Fireware updates for 'Time' unit, its a situation that I can not confirm or test.
If failed to read media from SD_Card, then try read it as a 'Portable device' [Rmouse menu]

There is an option to run software - incompatible mode, but not for system drivers or at the point of access to data [HD/usb......].

A quick look on the Sony support site has on covered updates for Win7 including driver update for the 'data card reader'

Vaio : Sony Europe