Install Memory Card Reader Writer Driver (Ricoh) (SD) MANUALLY with the following procedure.
MUST NOT USE AUTOMATION TOOL LIKE "DPInst".
1. Launch "Device Manager".
2. Open properties of "SDA Standard Compliant SD Host Controller".
3. Check the number of "function" in "Location:" of "General" tab.
      If the number is "4", proceed to the next step.
      If the number is not "4", check the other "SDA Standard Compliant SD Host Controller".
4. Open "Driver" tab.
5. Click "Update Driver...".
6. Click "Browse my computer for driver software".
7. Click "Let me pick from a list of device drivers on my computer".
8. Click "Have Disk...".
9. Click "Browse...".
10. Select INF file in "Memory Card Reader Writer Driver (Ricoh) (SD)" and click "Open".
11. Click "OK".
12. Click "Next".
13. If "Windows Security" dialog is shown, click "Install this driver software anyway".
14. Click "Close".