i am getting this file(Trojan Generickd) again and again every 5 min, how can i resolve this issue?

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/

Opera: https://browsersolution.com/reset-opera-browser

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) Reset windows host file to default: https://support.microsoft.com/en-us/topic/how-to-reset-the-hosts-file-back-to-the-default-c2a43f9d-e176-c6f3-e4ef-3500277a6dae

6) Run Disk Cleanup: https://support.microsoft.com/en-us/windows/disk-cleanup-in-windows-8a96ff42-5751-39ad-23d6-434b4d5b9a68

If issue persists, 

Generate bitdefender BDsysLog: https://www.bitdefender.com/consumer/support/answer/1922/

Generate bitdefender support tool logs: https://www.bitdefender.com/consumer/support/answer/1733/

Generate bitdefender connectivity logs: https://www.bitdefender.com/consumer/support/answer/9689/

Share the logs & your query with bitdefender support team by dropping them an email at bitsy@bitdefender.com

If the generated logs are larger in size, you can upload the logs to google drive or we.tl (7days link validity for free users) or ask the support team to provide you with the online link & password of bitdefender cloud where you can upload the logs and share the upload link with the support team.

The support team will reply back to your query within next 24-48 hours excluding weekends.

Regards