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sihost.exe spam create setup file for BD after unintsall

Hi, i used BD before and uninstalled a couple months ago. But i found out that sihost.exe is spam create file for BD setup (i used process monitor and accidentally found out that). How do i stop it and completely uninstall BD again ? Thanks you

Best Answer

  • Flexx
    Answer ✓

    Kindly perform the following steps and see if they help you in any way:

    1) Uninstall the Bitdefender product using the Add/Remove Programs option in Windows.

    2) To remove any remaining files, download and run the Bitdefender product uninstaller from this link:

    3) Restart your PC in safe mode. You can follow this guide:

    4) As soon as the desktop opens, assuming your Windows drive is 'C,' open the following locations in the 'Run' command (Windows icon + R) one by one:

    C:\Program Files (delete any folder with the name bitdefender)

    C:\Program Files (x86) (delete any folder with the name bitdefender)

    C:\ProgramData (delete any folder with the name bitdefender)

    C:\Users{your PC name}\AppData\Local (delete any folder with the name bitdefender)

    5) Open the Run command and execute the following commands one by one:

    temp - delete all the files in the folder

    %temp% - delete all the files in the folder

    prefetch - delete all the files in the folder

    6) Open the registry editor through the 'Run' command (Windows icon + R) and then type 'regedit.' Once the registry editor opens, click on 'Edit' -> 'Find,' and make sure to checkmark 'Match whole strings only.' Type 'bitdefender' in the search box and click 'Find Next.' If any file or folder with the name 'bitdefender' is found, delete it. Continue searching the registry and deleting until the search reports no registry keys found. Restart your PC in normal mode by unchecking the option you selected to run the system in safe mode, and then click 'Apply.'

    7) Remove devices from your online Bitdefender Central:

    If the issue persists, kindly contact Bitdefender support by visiting Depending on the product you've selected and the type of issue you're facing, you can get in touch with a support representative via email, chat, or phone.

    If you choose email, you will receive a ticket number in your registered email. Kindly generate and attach the following logs to the ticket number you received on your registered email:

    Generate Bitdefender BDsysLog:

    Generate Bitdefender Support Tool Log:

    Generate Bitdefender Connectivity Log:

    If the generated logs are large, you can upload them to Google Drive or WeTransfer (with a 7-day link validity for free users). Alternatively, you can ask the support team to provide you with the online link and password for Bitdefender Cloud, where you can upload the logs and share the upload link with the support team.

    The support team will reply to the same email within the next 24-48 hours, excluding weekends.


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