This is a fake repair tool. Run by an Indian company that goes by the name of outbyte.
https://outbyte.com is their main site.
They also call themselves 247 Live Assist
Outbyte has another number: 18772300047 or (877) 230-0047
They used such a fake popup online to make people download their software:
In that software it shows that number:
(credits to Botvernichtung for finding it)
Another number of them 18772916858 which can be found here: https://assist.outbyte.com/setup