Windows 10: Need some help reviving an old PC

Hi. My aunt asked me to give her laptop a once over because it wasn't 'working right'. Yeah, no kidding. Its slowed to an absolute crawl. Its been like that for a long time apparently, she just never bothered doing anything about it.

I did the basics, uninstalled a lot of garbage, updated whatever I could, that sort of thing but it's still slow af. Not really sure haow to proceed. Any ideas what usually causes this sort of slowness? I thought maybe the AV but even jpegs take ove half a minute to open...

Help. TIA.

Windows 7
Core i3
4Gb

:)

 

Unlink an old android phone from my pc

I go thru the suggested steps: Start - Settings - Phone - Unlink this PC.

When I first open the "your phone" screen the old phone is listed. Not sure if the phone listed is suppose to be selectable or not, but my is not. When I select "Unlink this PC" the phone listed is removed. When I select "Add Phone" the old phone still
shows. I have removed the old phone from my Microsoft Account. I have rebooted after unlink this pc but I still cannot remove my old phone.

 

Revival of contacts

Please let me know where the contact list is saved and how it can be revived in the microsoft live.com account

 

help to remote connect

not sure how to use both programs u 2 suggested, i need more helpful steps thanks