I received a message from Domain WHOIS Update saying, "We have completed the change of registrant information on the domain." What should I do to change its host?

That usually just means it has a runny nose or that it’s hot. Sometimes, a dog may even do it for attention.

You may have a virus. Go into safe mode with networking, delete restore points and turn off system restore. Scan using malware bytes.

Use common sense; don't open attachments, don't give them your credit card number, etc.

Press and hold power button for a few seconds (turns off the PC), do that multiple times on boot, and windows startup repair should repair the broken system files and...

Go to the app store, go the page of the app you wish to update, click "update".

Try updating the app again through the Google Play Store. If you still get error messages, try rebooting your device or modem, and try switching your WiFi off then back...

Turn off the app. Start anew. You could also turn off the TV if you want but it's not necessary.

You are out of space. You have to delete items in order to add more.

Actually, both ways are correct. But the most suitable and easy way is to write like Rxe8. That way will also be easy to write it quickly.

Make sure your device has enough storage. Sometimes, when you don't have storage, it won't let you download. Clear space by deleting unwanted items.