How to clean and close the redundant Windows 7 system service

hands-on operating system service I control, the system's diagnostic tools will not work properly, will prompt "diagnostic policy service has been disabled".
In addition to the DPS service, we can also turn off the Diagnostic Service Host service at the same time. Its role is to analyze the cause of the failure. Also similar is the Diagnostic System Host, a system component diagnostic service. Its role is to detect problems with Windows components, troubleshoot and provide solutions. Under normal circumstances, it is not used, and similar to the DPS service, the chances of solving the problem are not large, so you can choose to disable.
If the DPS service still has some effect, then the Distributed Link Tracking Client (DLTC) service can be said to have no effect at all! Its main role is to maintain the computer inside or in the computer on the LAN. A link between NTFS file system files. To put it bluntly, shortcuts, object links, and embedded links are still valid after the target file is renamed or moved. Moreover, in the LAN, only all computers have the service enabled, so it can be completely disabled.
In addition, you can be compared with the DLTC service, "Is it beautiful", I am afraid it will be counted as Windows Error Reporting Service (Windows System Error Reporting Service) service! This service is believed to be familiar to everyone, its role is to stop the program. Or report an error when it stops responding, and allow the solution to be provided, along with the corresponding error log and report. Have you used it? So forbidden, don't hesitate!
Autoplay disables safer
Shell Hardware Detection, hardware detection service, SHD for short, it is used for automatic playback of equipment or hardware Provide notification function, which is the common operation prompt that will pop up after inserting the flash memory (as shown in Figure 3). If you think that this hint doesn't have much practical meaning, or even an annoying tip, simply disable it so that you don't have any hints when you connect to flash or removable devices in the future.
Hint: Disabling this function disables the autoplay function. It can also reduce the risk of system poisoning to a certain extent. Why not?
If you close the SHD service first, the system may also prompt you. You need to turn off the Windows Image Acquisition (WIA) service, which provides image capture services for scanners and cameras. In general, if your computer is not connected to a scanner, you can turn it off. Ordinary users generally do not connect to the camera, because copying pictures is usually done using a card reader.
Hint: The service defaults to “manual” status. If you connect the scanner, you do not need to modify the status of the service. If you do not have the option to manually change it to “disable”.
Search function varies from person to person
The search function provided in Win 7 (Windows Search) has made great progress, but different users may have different positioning for this function. If the user needs to use this function to search for documents and the like frequently, then the status quo can be maintained (delayed startup); if the user rarely uses the search function of Win 7, then the service can be disabled.