What is TWCU.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 TWCU.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.

Click to Run a Free Scan for TWCU.exe related errors

TWCU.exe file information

Windows Task Manager with TWCU
TWCU.exe process in Windows Task Manager

The process known as TP-LINK Wireless Client Utility or TP-LINK Wireless Utility or TL-WN321G (version 1.0 Utility) or TL-WN321G Wireless Utility or MFC Application or TP-LINK (version 11G Wireless Client Utility)

belongs to software TP-LINK Wireless Configuration Utility or TL-WN751ND Driver or TP-LINK Wireless Client Utility or TP-LINK Wireless Client or TP-LINK Wireless Client Utility Installation or TL-WN321G or TL-WN321G Wireless Utility or Wireless Client Utility Application


Description: TWCU.exe is not essential for Windows and will often cause problems. TWCU.exe is located in a subfolder of "C:\Program Files" or sometimes in a subfolder of C:\. Known file sizes on Windows 10/8/7/XP are 846,848 bytes (32% of all occurrences), 788,992 bytes and 26 more variants. 
It is not a Windows core file. There is no file information. The application starts when Windows starts (see Registry key: MACHINE\User Shell Folders, MACHINE\Run, User Shell Folders). The program is not visible. TWCU.exe is able to record keyboard and mouse inputs. Therefore the technical security rating is 54% dangerous, however you should also read the user reviews.

Uninstalling this variant: You can do the following:

Recommended: Identify TWCU.exe related errors

Important: Some malware camouflages itself as TWCU.exe, particularly when located in the C:\Windows or C:\Windows\System32 folder. Therefore, you should check the TWCU.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

this is for TP Link wireless cards
Tablet_Work CAD Tablet
  Milan Tirnanic  
may cause some applications to lose focus
TWCU.exe is a critical pogram for TP-LINK uses to connect to the internet.
This is needed for TP Link wireless cards. It is safe.
all ive noticed is as the process is running all of my games will minimize, as will some other programs, and it will bring me to the desktop, when i end the process this doesnt happen anymore..
Causes full-screen applications to lose focus. Killing this process won't stop your wifi from working.
TWCU.exe is TP Link's wireless configuration tool, a task windows can handle. This process intermittenly switches focus from open programs and minimizes fullscreen ones on my windows xp system
Everyone is right, it's for the TP Link wireless cards. But like other people have said it constantly minimizes games randomly and "clicks" out of applications at least once every 30 seconds. Just exit out of it and only use it when you need it.
Official TP Link software, but CAN still cause problems. It randomly makes windows inactive in Win 7, which hinders typing on a keyboard.
This program causes most of my other programs to lose focus every 15 seconds or so meaning if you are writing in word or an email it just stops until you re click the focus the cursor. I have to manually stop the program in task manager to stop it doing that
  Brad Mildern  
I have a TP-LINK wireless connecter and it is for that. However, it causes my game to minimize every few minutes. It can be killed and I can still connect to the internet.
Ruins any full screen application or game focus. brings you to desktop but is otherwise safe. Annoying but safe lol
Necessary for TP-LINK Wlan cards, causes programs to loose focus and minimise
it causes to minimize windows screens. but you can close the task. you can still connect to the internet.
I have TP-Link wireless connector. A week after installing it I was getting CPU Usage holding at 40 to 60% with no applications open and up to 100% with a few applications open. Using Task Manager I ended 3 or 4 unfamiliar processes with no reduction of CPU Usage. After I ended TWCU.exe with Task Manager, CPU Usage dropped instantly to 1 to 5%. So far I have not lost WiFi connection but seems to have instantly solved my problem with very high CPU Usage!
Optional install when using TP-Link wirless. Unneccessary and can be deleted (ad/remove programs) without affecting wireless performance.
  M Rhind  
It is the TP Link program you use to choose a wireless network to connect to. It can cause certain programs to crash, especially CommView for wifi. You can uninstall this and use the windows zero config program instead to connect to wireless networks, it seems to work better this way in XP.
  Jeffrey Pettigrew  
it sometimes causes my open windows to minimize , no harmful effect from keeping it running nor ending it. also it does not effect the wireless connection when you force end it using the task manager....
  Kane Mercer  
Came with TP-Link. It causes CPU to run 40 to 60% usage when no applications are running. End Process restores low CPU usage without ending WiFi connection.
  Haig P  
On my comp TWCU uses 1,016,472K of memory. Windows reports low on memory and offers to close the program. I closed it and memory became available, Wi-Fi still works.
  Sergei Zykov  
Steals window focus randomly. Very annoying. Just use windows driver to run wireless.
It loads in Windows 8 and refuses to find its library files. Doesn't keep me from connecting, but sometimes causes Windows to go to sleep immediately after loading on Startup.
  Donald McDaniel  
GAMERS - It does minimize games so end process if your having problems
To Salvatrore: This is needed for TP Link wireless cards - not at all. If I delete this process (use Ctrl+Alt+Del Processes), wireless connection go without problems.
Utility for TP-Link wireless devices. Useful for configuring your WLAN connection, but tends to randomly minimize fullcreen applications (in my case the game Firefall).

Rating chart

Summary: Average user rating of TWCU.exe: based on 33 votes with 26 user comments. 7 users think TWCU.exe is essential for Windows or an installed application. 4 users think it's probably harmless. 17 users think it's neither essential nor dangerous. 5 users suspect danger. 5 users don't grade TWCU.exe ("not sure about it").

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Best practices for resolving TWCU issues

A clean and tidy computer is the key requirement for avoiding problems with TWCU. This means running a scan for malware, cleaning your hard drive using 1cleanmgr and 2sfc /scannow, 3uninstalling programs that you no longer need, checking for Autostart programs (using 4msconfig) and enabling Windows' 5Automatic 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 6resmon 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 7DISM.exe /Online /Cleanup-image /Restorehealth command. This allows you to repair the operating system without losing data.

To help you analyze the TWCU.exe process on your computer, the following programs have proven to be helpful: ASecurity 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. BMalwarebytes Anti-Malware detects and removes sleeping spyware, adware, Trojans, keyloggers, malware and trackers from your hard drive.

Other processes

TWCU.exe [all]