If you think this is a driver issue, please try Where do we see DC UNLOCKER 2 CLIENT V Pre-Installed.exe ? Let try to run a system scan with Speed Up My PC to see any error, then you can do some other troubleshooting steps. What can you do to fix DC UNLOCKER 2 CLIENT V Pre-Installed.exe ? If you encounter difficulties with DC UNLOCKER 2 CLIENT V Pre-Installed.exe, you can uninstall the associated program (Start > Control Panel > Add/Remove programs How to remove DC UNLOCKER 2 CLIENT V Pre-Installed.exe
Let try the program named DriverIdentifier to see if it helps.
Is DC UNLOCKER 2 CLIENT V Pre-Installed.exe using too much CPU or memory ? It's probably your file has been infected with a virus. Something wrong with DC UNLOCKER 2 CLIENT V Pre-Installed.exe ?