Manually Removing incorrect drivers (Prolific)

Manually Removing incorrect drivers (Prolific)
(Originaly Posted on 23-APR-2003, by Robert L. McConn)
(Original Thread: Stop Errow Screen with win XP )

I had the same problem and had no luck contacting SilverLeaf. They tried their best but could not solve the problem. The Bafo web site shows a new BF810 driver Version 1.5 for Windows XP. However, when I download this zipped file, I still got a driver SER2PL.sys Version I then contacted Bafo and they sent me an e-mail with the prober driver attached. They also included detailed instructions on removing the old version 1.3. Properly removing the old driver is very important.

Here is Bafo's response and attached to this reply is the proper driver. Hope this all comes through o.k. If not feel free to contact me by e-mail and I will forward it all to you.

Bob Mc

Dear Robert,

USB to Serial adapter - Windows 2000 & XP

Manually Removing incorrect drivers

Note: enable to see all the hidden files and folders

1. Go to Start / Search / For Files or Folders. Type in SERPORT and click

Search Now. Search result will show serport.inf is located at C:\WINNT\INF

and serport.vxd is located at C:\WINDOWS\SYSTEM32. Please select serport.inf

and serport.vxd and Delete. Note: You might have see more then 2 serport

files, please delete all the files that contain serport files in C:\WINDOWS\…

2. Repeat step #1 to search “ser?pl” and “usb2ser”

3. Type OEM*.INF and click SEARCH NOW.

If the file OEM*.INF can not be found please do the following:

a. Go to the menu bar and click on




AND FOLDERS and click OK.

c. Click SEARCH NOW.

If you have multiple files of OEM*.INF, you need to search for the correct file to delete. Windows 2000 renames all drivers to OEM*.INF.

a. Double click each file and Notepad

will open it.

b. Press Ctrl + F and type in the following:

USB\VID_067B&PID_2303 and click


The OEM*.INF file that contains USB\VID_067B&PID_2303 is the file that needs to be deleted. Close Find and Notepad windows. You may now delete this file by right clicking your mouse button and scroll down to Delete.

4. Go to Start / Run / type in REGEDT32 and click OK. Multiple windows will

open at the same time. Find Hkey_Local_Machine à System /

CurrentControlSet / Enum / USB / USB\Vid_067b&Pid_2303 and press

delete. If you can’t delete this file, go to Security / Permissions / select the

Full Control and click OK. Now you may delete USB\Vid_067b&Pid_2303.

5. Hkey_Local_Machine/System/ControlSet001/Services….please delete the filename “Serport” or “Ser?pl”

6. Hkey_Local_Machine/System/ControlSet002/Services….please delete the filename “Serport” or “Ser?pl”

7. Unplug the adapter and computer reboot

8. Plug in the adapter with USB cable and windows will find the new hardware

1. download attached driver

2. unzip the driver

3. attached USB cable with converter

4. let windows attached new hardware device

5. select specified a driver location

6. point to where you can see "ser2pl.inf"

7. click next to continue

9. and then Windows will find the driver

10. click next to finish the installation

Best Regards,

BAFO Support Center


MarkO re-posting Robert L. McConn

Mark D. Overholser
Engineering Technician
SilverLeaf Electronics Inc.
2472 Ferry Street SW
Albany, OR 97322

541-967-8988 (fax)
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