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Thread ID: 117567 2011-04-25 02:35:00 Card reader problem bk T (215) Press F1
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1196859 2011-04-25 02:35:00 I have a generic USB card reader installed (took it from another PC) but it doesn't read any of my SD cards! Device Manager shows yellow exclamation marks. However, driver details as shown below:

C:\Windows\System32\DRIVERS\UMDF\WpdFs.dll
C:\Windows\System32\DRIVERS\UMDF\WUFRd.sys

It doesn't come with any driver CD but remembered it did work on another PC running Windows 7 Ultimate. The PC I have now is Win 7 Home Prem.

Could someone help me to get it to work?


Edit: Device Manager says : Device cannot start.
bk T (215)
1196860 2011-04-25 03:02:00 Delete the entry then reboot. See if this fixes it Speedy Gonzales (78)
1196861 2011-04-25 03:24:00 Got it working now.

What I did was assigning a drive letter to it and restarted my PC.

What I don't understand is, why it has to be assigned a drive letter for it to work?
bk T (215)
1196862 2011-04-25 03:34:00 Its like a hdd. If it doesnt have a letter, you wont see it in my computer / computer Speedy Gonzales (78)
1196863 2011-04-25 03:45:00 And probably unless you have something plugged into it, it won't know it's there, so won't assign a drive letter automatically. :2cents: feersumendjinn (64)
1196864 2011-04-25 04:00:00 Thanks. bk T (215)
1196865 2011-04-25 05:22:00 I have a multi-card reader which shows up as 4 removable drives and is automatically assigned drive letters even without media in it.

Chipset is made by Alcor Micro.
Agent_24 (57)
1196866 2011-04-25 05:24:00 Yup Apacer card readers gives each one letters too (well the ones I've used do) Speedy Gonzales (78)
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