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- Go to Settings > Apps.
 - Scroll to All apps and then scroll down to “GooglePlay Services” app.
 - Open the app details and tap on the “Force stop”button.
 - Then, tap on the “Clear cache” button.
 
 Keeping this in view,  how do I restore Google Play services?
Clear cache & data from Download Manager
- On your Android phone or tablet, open your Settings app .
 - Tap Apps & notifications.
 - Tap Download Manager.
 - Open Google Play Services.
 - Tap Storage Clear cache.
 - Tap Clear storage OK.
 - Open the Google Play Store, then try your download again.
 
Hereof, how do you fix Unfortunately Google Play Services has stopped?
Here's How to Fix It
- Restart Your Device.
 - Update the Play Store and Google Services.
 - Change From Cellular Data to Wi-Fi (or Vice-Versa)
 - Change the Time and Date.
 - Clear Google Play Services Data (and Cache)
 - Revert to an Older Version of Google Play Store.
 - Remove Your Google Account.
 - Install a Third-Party Copy of the Play Store.
 
Update Google Play Services
- From your phone's app settings menu, go to Apps (sometimescalled Apps & Notifications).
 - Find Google Play Services under your list of all apps.
 - If you have an option to Update or Install, tap to do so.
 - From your phone's settings menu, go to the Apps section.
 - Find Google Play Services under the list of all apps.