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The HP Stream 7 tablet running Windows 8.1 may experience excessive battery drain, resulting in:
Battery lasting less than 2 hours.
Battery discharging rapidly even while the tablet is in Sleep/Suspend mode.
Tablet losing most or all of its charge overnight despite being fully charged.
Troubleshooting steps
Disable unnecessary Windows services and startup items that continue to consume power in the background.
1: Disable Realtek Audio Manager Startup
Open Task Manager.
Locate RealTek Audio Manager.
Disable it from Startup.
Do not disable the RealTek audio driver.
2: Disable Intel DPTF Service
Open Services in Windows.
Locate Intel DPTF LPM Service Helper.
Stop the service.
Set the service to Disabled.
Note: Simply disabling an item in Task Manager may not be sufficient. If the corresponding Windows service is set to Automatic, disable the service from the Services console as well.
3: Disable Unused Windows Services and Features
Disable the following if they are not required:
Remote Desktop (all related services)
Windows Search (Indexing)
Update app features
Fax
AppReadiness
Remote Registry
Remote Access
Windows Update
HomeGroup functions and services
The post also notes that other unused features, such as BitLocker, may be disabled if they are not needed.
4: Restart the Tablet
Restart the HP Stream 7 after disabling the services for the changes to take effect.
