Sep 26, 2013 PROLIFIC 3.2.0.0 DRIVER GUIDE FOR WIDOWS 7 (not yet tested on Windows 8) Must USB Programming cables for Wouxon and Boafeng (Kenwood style) come with a driver and software disk. The drivers may not work on all systems. Having a number of different systems I have had much success with the PROLIFIC 3.2.0.0 driver.
How to Update Device Drivers Quickly & Easily
Tech Tip: Updating drivers manually requires some computer skills and patience. A faster and easier option is to use the Driver Update Utility for Prolific to scan your system for free. The utility tells you which specific drivers are out-of-date for all of your devices.
Step 1 - Download Your Driver
To get the latest driver, including Windows 10 drivers, you can choose from a list of most popular Prolific downloads. Click the download button next to the matching model name. After you complete your download, move on to Step 2.
If your driver is not listed and you know the model name or number of your Prolific device, you can use it to search our driver archive for your Prolific device model. Simply type the model name and/or number into the search box and click the Search button. You may see different versions in the results. Choose the best match for your PC and operating system.
If you don’t know the model name or number, you can start to narrow your search down by choosing which category of Prolific device you have (such as Printer, Scanner, Video, Network, etc.). Start by selecting the correct category from our list of Prolific Device Drivers by Category.
Need more help finding the right driver? You can request a driver and we will find it for you. We employ a team from around the world. They add hundreds of new drivers to our site every day.
Tech Tip: If you are having trouble deciding which is the right driver, try the Driver Update Utility for Prolific. It is a software utility that will find the right driver for you - automatically.
![Driver Driver](http://4.bp.blogspot.com/-taD5DpTH-gQ/UHLjC5IusDI/AAAAAAAAARo/Hm7rEt-YjJ0/s320/Untitled2b.jpg)
Step 2 - Install Your Driver
After you download your new driver, then you have to install it. To install a driver in Windows, you will need to use a built-in utility called Device Manager. It allows you to see all of the devices recognized by your system, and the drivers associated with them.
How to Open Device Manager
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In Windows 8.1 & Windows 10, right-click the Start menu and select Device Manager
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In Windows 8, swipe up from the bottom, or right-click anywhere on the desktop and choose 'All Apps' -> swipe or scroll right and choose 'Control Panel' (under Windows System section) -> Hardware and Sound -> Device Manager
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In Windows 7, click Start -> Control Panel -> Hardware and Sound -> Device Manager
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In Windows Vista, click Start -> Control Panel -> System and Maintenance -> Device Manager
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In Windows XP, click Start -> Control Panel -> Performance and Maintenance -> System -> Hardware tab -> Device Manager button
How to Install drivers using Device Manager
![Driver Driver](/uploads/1/2/4/9/124985966/455885915.png)
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Locate the device and model that is having the issue and double-click on it to open the Properties dialog box.
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Select the Driver tab.
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Click the Update Driver button and follow the instructions.
In most cases, you will need to reboot your computer in order for the driver update to take effect.
Tech Tip: Driver downloads and updates come in a variety of file formats with different file extensions. For example, you may have downloaded an EXE, INF, ZIP, or SYS file. Each file type has a slighty different installation procedure to follow.
If you are having trouble installing your driver, you should use the Driver Update Utility for Prolific. It is a software utility that automatically finds, downloads and installs the right driver for your system. You can even backup your drivers before making any changes, and revert back in case there were any problems.
Try it now to safely update all of your drivers in just a few clicks. Once you download and run the utility, it will scan for out-of-date or missing drivers:
When the scan is complete, the driver update utility will display a results page showing which drivers are missing or out-of-date. You can update individual drivers, or all of the necessary drivers with one click.
For more help, visit our Driver Support Page for step-by-step videos on how to install drivers for every file type.
I tried everything that was said here and it still did not work. Every time it said
'The name is already in use as either a service name or a service display name.'
What was strange is that first I had Windows 7 32-bit version and installed some Profilic drivers for Vista and it worked with no problem.
After that I did a clean install of Windows 7 64-bit version and used the same drivers. But in the middle of installation it said that drivers are not digitaly signed and since then nothing I tried worked. I downloaded the latest drivers from Profilic site, but it didn't help.
So I tried many things and finally found a solution and wanted to post it here.
First I removed all the drivers like it is said here:
Removing drivers from Vista
After that I still got 'The name is already in use as either a service name or a service display name.' error
Then I did this procedure
You Cannot Install Driver Files for Your Network Adapter and You Receive a "Cannot Install This Hardware" Error Message
but in the part where it said that you look for network adapter
'Expand HKEY_LOCAL_MACHINESYSTEMCurrentControlSetServices, and then look for registry entries specific to your network adapter. For example, if you have a Linksys network adapter, look for entries named Linksys. When you find an entry, right-click the name and then click Delete.'
I deleted the whole ser2pl64 directory and followed the procedure to the end.
Then I installed the usb to seriall adapter again with the latest drivers from Profilic
Welcome to Prolific
For some reason it took couple of minutes until the adapter was installed. I was affraid that there was error again and that it didn't work, because the installation of the Profilic drivers was finished and the usb to serial device in the Device manager still had the yellow exclamation mark and it was in the Other directory. I was doing something else and when I looked after 5 minutes it moved to correct directory and everything was OK with the device.
Hope this helps.
'The name is already in use as either a service name or a service display name.'
What was strange is that first I had Windows 7 32-bit version and installed some Profilic drivers for Vista and it worked with no problem.
After that I did a clean install of Windows 7 64-bit version and used the same drivers. But in the middle of installation it said that drivers are not digitaly signed and since then nothing I tried worked. I downloaded the latest drivers from Profilic site, but it didn't help.
So I tried many things and finally found a solution and wanted to post it here.
First I removed all the drivers like it is said here:
Removing drivers from Vista
After that I still got 'The name is already in use as either a service name or a service display name.' error
Then I did this procedure
You Cannot Install Driver Files for Your Network Adapter and You Receive a "Cannot Install This Hardware" Error Message
but in the part where it said that you look for network adapter
'Expand HKEY_LOCAL_MACHINESYSTEMCurrentControlSetServices, and then look for registry entries specific to your network adapter. For example, if you have a Linksys network adapter, look for entries named Linksys. When you find an entry, right-click the name and then click Delete.'
I deleted the whole ser2pl64 directory and followed the procedure to the end.
Then I installed the usb to seriall adapter again with the latest drivers from Profilic
Welcome to Prolific
For some reason it took couple of minutes until the adapter was installed. I was affraid that there was error again and that it didn't work, because the installation of the Profilic drivers was finished and the usb to serial device in the Device manager still had the yellow exclamation mark and it was in the Other directory. I was doing something else and when I looked after 5 minutes it moved to correct directory and everything was OK with the device.
Hope this helps.