If nothing was clicked, no number was called, no software was installed, and no information was shared, this was most likely a tech support scam page and the PC is likely safe.
What to do now:
- Close the browser if it is still open. If the popup returns and the browser will not close, press Ctrl+Alt+Del, open Task Manager, and end the browser task.
- If the browser offers to restore the previous tab or session, do not restore it, or the scam page may reopen.
- Run a full scan with Windows Security to check for malware.
- Go to Start > Settings > Windows Update > Check for updates and install available security updates.
- If any unfamiliar apps were installed recently, uninstall them.
- If personal information, passwords, or payment details were not shared, no urgent account recovery step is indicated from this incident alone.
Important signs this was a scam:
- Real Microsoft error and warning messages do not include phone numbers.
- Microsoft does not make unsolicited phone calls to tell people there is a problem with their device.
- Scam pages often use full-screen warnings, repeated pop-ups, and alarming sounds to make the device appear locked.
Urgent action is mainly needed only if remote access was allowed, software was installed, money was paid, or passwords/payment details were shared. In that case, uninstall the software, run a full Windows Security scan, apply updates, change passwords, and contact the card provider if payment was made.
The main immediate step here is a Windows Security full scan for peace of mind.