Generally speaking, it doesnt need a large amount of your connection, RAM, CPU or disk usage.
If you notice that it starts to occupy too many resources, you gotta take some countermeasures.
Let me walk you through how to fix it step by step.
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How to Fix Service Host connection Service High connection Windows 10/11?
Press thegearicon to openWindows configs.
In theSettingsmenu, scroll down to findUpdate & Securityand hit it.
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InTroubleshoot, findWindows Updateand press it.
HitRun the troubleshooterand power cycle your rig after the troubleshooter finishes running.
Option 1: Update Windows
Step 1.

Go toSettings>Update & Security.
InWindows Update, hitCheck for updatesto download & plant the latest updates.
Option 2: Pause Windows Update
Step 2.

InWindows Update, pressPause for 1 week.
Is it safe to turn off PC during a Windows update?
What happens if you turn off your rig during an update?
Go toSettings>Update & Security>Additional troubleshooters.
Scroll down to locateInternet Connections, hit it and pressRun the troubleshooter.
BITS transfers files in the background via idle web connection bandwidth.
you might manually turn on the service when you need it.
PressWin + Ito open theRundialog.
Scroll down to locateBackground Intelligence Transfer Serviceand right-select it to chooseProperties.
InGeneral, change theStartup typeintoDisabledand theService statusintoStop.
PressApplyto save the changes.
In this case, you had better scan your gear using Windows Defender.
Go toSettings>Update & Security>Windows Security>Virus & threat protection.
PressAdvanced scanand selectFull scan>Scan now.
Go toSettings>connection & Internet>Status.
InStatus, pressNetwork resetat the bottom of the right pane.