Check if below steps helps you in any way.

1) Restart PC in safe mode ( https://support.microsoft.com/en-us/windows/start-your-pc-in-safe-mode-in-windows-92c27cff-db89-8644-1ce4-b3e5e56fe234)

2) Open run command and run below command one by one:

temp ,delete all the files in the folder

%temp% ,delete all the files in folder

prefetch ,delete all the files in folder

3) Restart your PC in general mode by unticking the option that you selected to run the system in safe mode and then click apply.

4) Reset your browsers:

Google Chrome (https://support.google.com/chrome/answer/3296214?hl=en)

Mozilla Firefox (https://support.mozilla.org/en-US/kb/refresh-firefox-reset-add-ons-and-settings)

Microsoft Edge (https://malwaretips.com/blogs/reset-microsoft-edge/)

Vivaldi (https://help.vivaldi.com/desktop/install-update/full-reset-of-vivaldi/)

Brave (https://support.brave.com/hc/en-us/articles/360017903152-How-do-I-reset-Brave-settings-to-default-)

5) Now, to be on a safer side, I would also advise you to run these portable scanners which do not require any installation

* Download and run Malwarebytes AdwCleaner (https://www.malwarebytes.com/adwcleaner)

* ESET Online Scanner (https://download.eset.com/com/eset/tools/online_scanner/latest/esetonlinescanner.exe)

* Download and run a scan with Kaspersky Virus Removal Tool (https://devbuilds.s.kaspersky-labs.com/devbuilds/KVRT/latest/full/KVRT.exe). Make sure you checkmark System Memory, Startup Objects, Boot Sectors & System Drive before running a scan.

If the issue persists, kindly contact the bitdefender support by visiting https://www.bitdefender.com/consumer/support/ and scroll down to the bottom of the webpage where you can get in touch with support representative either by email, chat or over a call.

Regards