How to remove the bthci32.dll malware

Most antivirus programs classify bthci32.dll as a harmful extension to Internet Explorer: for example TrojanDownloader:Win32/Tracur.B (detected by Microsoft), and Generic Downloader.x!bst (detected by McAfee). Add-ons like this can display ads, slow down your computer and cause various other errors. If you can't remember installing the associated bthci32.dll software, it's no surprise. In most cases, this kind of adware is installed on the side when you install a freeware product like a Youtube Downloader or a PDF Converter. In the following selection, you can read more about bthci32.dll and how to get rid of it.

Click here to automatically remove the bthci32.dll malware

Bthci32.dll file information

The process bthci32.dll has no data about its author.

Description: Bthci32.dll is not essential for Windows and will often cause problems. The file bthci32.dll is located in the C:\Windows\System32 folder. Known file sizes on Windows 10/8/7/XP are 51,712 bytes (20% of all occurrences), 118,784 bytes, 33,706 bytes, 20,950 bytes or 21,948 bytes. 
This .dll file is a Browser Helper Object (BHO) that runs automatically every time you start your web browser. BHOs are not stopped by personal firewalls, because they are identified by the firewall as part of the browser itself. BHOs are often used by adware and spyware. IDs used by this BHO include 02478D38-C3F9-4efb-9B51-7695ECA15670 or 626BBCBF-D72E-4446-A5A1-A53B33210B5B or B232187F-1783-498F-A90A-5CF106270F99 or 3E39AD56-C088-4974-B2D8-CCEF84473163. There is no file information. The program is not visible. The service has no detailed description. The bthci32.dll file is not a Windows core file. It is located in the Windows folder, but it is not a Windows core file. It is able to change the behavior of, or monitor Internet Explorer. Therefore the technical security rating is 92% dangerous.

Recommended: Identify bthci32.dll related errors

Important: You should check the bthci32.dll process on your PC to see if it is a threat. If bthci32.dll has changed your browser's search engine and start page, you can recover your browser's default settings as follows:

Reset default browser settings for Internet-Explorer ▾
  1. In Internet Explorer, press the key combination Alt + X to open the Tools menu.
  2. Click Internet options.
  3. Click the Advanced tab.
  4. Click the Reset... button.
  5. Enable the Delete personal settings option.
This will reset your Internet Explorer to its default settings. Your browser will start with the familiar start page and search engine—without popups, ads, cookies, but all browser add-ons are deleted too [1]. Make cleaning up your browser and your computer simpler and safer with Security Task Manager.


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Best practices for resolving bthci32 issues

The following programs have also been shown useful for a deeper analysis: Security Task Manager examines the active bthci32 process on your computer and clearly tells you what it is doing. Malwarebytes' well-known anti-malware tool tells you if the bthci32.dll on your computer displays annoying ads, slowing it down. This type of unwanted adware program is not considered by some antivirus software to be a virus and is therefore not marked for cleanup.

A clean and tidy computer is the key requirement for avoiding PC trouble. This means running a scan for malware, cleaning your hard drive using cleanmgr and sfc /scannow, uninstalling programs that you no longer need, checking for Autostart programs (using msconfig) and enabling Windows' Automatic Update. Always remember to perform periodic backups, or at least to set restore points.

Should you experience an actual problem, try to recall the last thing you did, or the last thing you installed before the problem appeared for the first time. Use the resmon command to identify the processes that are causing your problem. Even for serious problems, rather than reinstalling Windows, you are better off repairing of your installation or, for Windows 8 and later versions, executing the DISM.exe /Online /Cleanup-image /Restorehealth command. This allows you to repair the operating system without losing data.

Other processes

bthci32.dll [all]