Troubleshooting guide
How to fix the problem
Check for Windows security alerts, updates, unusual startup programs, and browser extensions. One inspection does not guarantee that there are no pests; change passwords from a trusted device if you suspect account theft.
If the problem persists
If there are specific signs of a hack, disconnect your computer from the network and view account logins from a trusted device. Do not log into the bank from a suspicious computer.
Request a repair