Hello, I’m Virginia a fellow Windows user.
Is there any remote access software installed - Anydesk, TeamViewer etc? If yes then uninstall it.
If not then when you say you’ve wiped your PC is this a clean install or a reset?
Have you also reset the router to default? If not then are you using the default SSID & Passcode? If yes then I’d change the details & remove any unknown devices from the connection. Otherwise reset the router to default then connect via Ethernet cable to access the router’s settings page to change the SSID & passcode.
Try running these programs:
MS Safety scanner: https://learn.microsoft.com/microsoft-365/security/intelligence/safety-scanner-download?view=o365-worldwide
MBAM free: https://www.malwarebytes.com/mwb-download/ ensure scan for rootkits is enabled.
If these find one or more infections but do not fully remove them it will be wise to register with a malware removal site to receive dedicated malware removal instructions, an expert will remain with you throughout the process until confirmation that your PC is 100% clean.
Malwarebytes virus/malware removal forum:
https://forums.malwarebytes.com/forum/7-windows-malware-removal-help-support/
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