Do you wanting to your PC from mobile so this website makes for you if you want to control your PC from my mobile so so you start
Firstly you want you open PC and go he's properties and find remote access then you you on this setting
2. Then go go to you about mobile so open play store and type Microsoft remote access
3. Then you need you are username and Ip address
4. What you do go to pc and search cmd and type whoiam
Then type IP config you get your ipadress
5. Then go to app you installed tap on add PC then ask your PC username and ipaddress then you can control youbpc from mobile
It so easy
If you have any problem let me know it