The file sptd.sys is most commonly associated with the driver for Daemon Tools V4.0. The file enables a program that initiated SCIS Pass Through Direct. The file simply serves as a driver to allow users to access optical media devices, and is used for CD burning functions. Not much information is available aside from the one already mentioned. The file does seem to use up too much CPU memory, as per users’ common experience regarding the file. If you have Daemon Tools installed on your system, and you use the program on a fairly regular basis; it is not recommended that you disable the file. On the one hand, if the program is seldom utilized, you may choose to stop it from launching every time you open the PC and load the system through the startup process. The file is usually saved in the following path: C:\Windows\System 32\Drivers\sptd.sys. File service name is sptd.
How can I stop sptd.sys and should I?
Most non-system processes that are running can be stopped because they are not involved in running your operating system. sptd.sys. is used by Daemon Tools 4.0, If you shut down sptd.sys, it will likely start again at a later time either after you restart your computer or after an application start. To stop sptd.sys, permanently you need to uninstall the application that runs this process which in this case is Daemon Tools 4.0, from your system.
After uninstalling applications it is a good idea to scan you Windows registry for any left over traces of applications. Registry Reviver by ReviverSoft is a great tool for doing this.
Is this a virus or other security concern?
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What is a process and how do they affect my computer?
A process usually a part of an installed application such as Daemon Tools 4.0, or your operating system that is responsible for running in functions of that application. Some application require that they have processes running all the time so they can do things such as check for updates or notify you when you get an instant message. Some poorly written applications have many processes that run that may not be required and take up valuable processing power within your computer.
Is sptd.sys known to be bad for my computer's performance?
We have not received any complaint about this process having higher than normal impact on PC performance. If you have had bad experiences with it please let us know in a comment below and we will investigate it further.
What can I do if sptd.sys is causing errors on my computer?
The first thing you should do if sptd.sys. is causing errors on your computer is to run a Windows registry scan with Registry Reviver If you are still seeing errors after this you should uninstall the program that sptd.sys, belongs to, in this case Daemon Tools 4.0