Which Windows 10 Services are Safe to Disable from services.msc?

Following are some services which can be safely set to MANUAL/DISABLED:

• Connected User Experiences and Telemetry (To turn off Telemetry and Data Collection)
• Diagnostic Policy Service
• Diagnostic Tracking Service (To turn off Telemetry and Data Collection)
• Distributed Link Tracking Client (If your computer is not connected to any network)
• dmwappushsvc (To turn off Telemetry and Data Collection)
• Downloaded Maps Manager (If you don't use Maps app)
• IP Helper (If you don't use IPv6 connection)
• Program Compatibility Assistant Service
• Print Spooler (If you don't have a printer)
• Remote Registry (You can set it to DISABLED for Security purposes)
• Secondary Logon
• Security Center
• TCP/IP NetBIOS Helper (If you are not in a workgroup network)
• Touch Keyboard and Handwriting Panel Service (If you don't want to use touch keyboard and handwriting features)
• Windows Defender Service (If you don't use Windows Defender program)
• Windows Error Reporting Service
• Windows Image Acquisition (WIA) (If you don't have a scanner)
• Windows Search (If you don't use Windows Search feature frequently)

Apart from the above-mentioned services, You can also set a few other services startup type to MANUAL such as services installed by your graphics card driver (Intel, nVidia, AMD, etc), your sound card driver (Realtek, Creative, etc).

STEP 2:

That's it. After configuring services startup type, close Services Manager and restart your computer to take effect.

After reboot, you'll notice a lot of improvement in your Windows 10 computer performance. By any chance if you face any issue with any software program, you can restore the services startup type to Automatic again using Services Manager to fix the issue.