What is btdna.exe?

The .exe extension on a filename indicates an executable file. Executable files may, in some cases, harm your computer. Therefore, please read below to decide for yourself whether the btdna.exe on your computer is a Trojan that you should remove, or whether it is a file belonging to the Windows operating system or to a trusted application.

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Btdna.exe file information

Windows Task Manager with btdna
Btdna.exe process in Windows Task Manager

The process known as DNA belongs to software DNA or BitTorrent DNA or Internet TRiLOGI or My Book Device Driver or Alphabet by BitTorrent (

Description: Btdna.exe is not essential for Windows and will often cause problems. Btdna.exe is located in a subfolder of "C:\Program Files" or sometimes in a subfolder of the user's profile folder or in a subfolder of the user's "Documents" folder. Known file sizes on Windows 10/8/7/XP are 342,848 bytes (25% of all occurrences), 323,392 bytes and 9 more variants. 
It is a file with no information about its developer. The file is a Verisign signed file. Btdna.exe is not a Windows core file. It is certified by a trustworthy company. The software starts when Windows starts (see Registry key: Run, DEFAULT\Run). The program has no visible window. The application listens for or sends data on open ports to a LAN or the Internet. Btdna.exe is able to monitor applications and record keyboard and mouse inputs. Therefore the technical security rating is 56% dangerous, however you should also read the user reviews.

Uninstalling this variant: The software publisher Bittorrent provides direct support ( and update information ( You could uninstall the program using the Control Panel ⇒ Uninstall a ProgramBitTorrent DNA or Nova-programs CS Pro / BrOffice.

Recommended: Identify btdna.exe related errors

Important: Some malware camouflages itself as btdna.exe. Therefore, you should check the btdna.exe process on your PC to see if it is a threat. We recommend Security Task Manager for verifying your computer's security. This was one of the Top Download Picks of The Washington Post and PC World.


User Comments

Poorly designed software, can cause excessive TCP connections which contributes to network issues. No GUI to configure from what I can tell. Probably not malicious, but if you don't know what it is, get rid of it.
Is installed with bittorrent but not necessary to run bittorrent. Looks as if it helps mainly the content providers. I see no value for me in it. De-Install
  Titule   (further information)
Have removed it using Control Panel
ASUS installs this bittorrent downloader when you download drivers from the official Asus website using their own downloader tool, DNA. It has no option to disable automatic loading of it with Windows, once use have used it, you can "uninstall" only by removing it from the applications startup list by hand. It is not dangerous, but can slow down your internet with the 7/24 uploading it offers in the background. One more negative: no icon is showed on the taskbar when it is running.
  The Lazy (from Hungary)   (further information)
It seems to be used by asus online storage for uploading your files also they offer P2P download for software updates. If it's hanging online it can be vulnerability.
This is part of the bittorrent application, i found that even after uninstalling Bittorrent, BtDNA.EXE would still appear in my Proccess list. I would reccomend removal if you don't use Bittorrent, but it's no big threat (Takes up alot of CPU)
I just got it and my pc was freezed totally all the time...very uber annoying..and cpu levels were normal..just freezed everything very slow...
Just a bandwidth eater - A easy Solution. Easy steps to deal with btdna.exe: do a normal windows search for the file. Delete it. Bittorrent can function just as well without btdna.exe
  Arjun Chawla  
More comments can be found here:
    (further information)

Rating chart

Summary: Average user rating of btdna.exe: based on 18 votes with 9 reviews. One user thinks btdna.exe is essential for Windows or an installed application. 10 users think it's neither essential nor dangerous. 4 users suspect danger. 3 users think btdna.exe is dangerous and recommend removing it. 5 users don't grade btdna.exe ("not sure about it").

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Best practices for resolving btdna issues

A clean and tidy computer is the key requirement for avoiding problems with btdna. 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.

To help you analyze the btdna.exe process on your computer, the following programs have proven to be helpful: Security Task Manager displays all running Windows tasks, including embedded hidden processes, such as keyboard and browser monitoring or Autostart entries. A unique security risk rating indicates the likelihood of the process being potential spyware, malware or a Trojan. Malwarebytes Anti-Malware detects and removes sleeping spyware, adware, Trojans, keyloggers, malware and trackers from your hard drive.

Other processes

btdna.exe [all]