Program Blocker: Free application blocker to block software from running on Windows


  1. Thanks Lavish
    A very handy wee program to have especially when trying to convince certain folks not to go poking about and then causing problems.

    Sometimes when an issue occurs and I ask what they have been doing just prior to the fault the normal answer is “nothing” when in reality the have been investigating what “this or that” does. With this they will be able to have a “look see” with Program Blocker stopping them in their tracks from going where it is dangerous for them to be and creating [possibly] serious problems.

  2. it’s great work what you’ve done here, although I have a suggestion rather then to block programs (black list) why not have a list of allowed programs (white-list) it’s more effective in blocking unwanted programs by only allowing authorized ones

  3. your software is awesome!. There is a problem with that password field remembering my password…

  4. Dear Lavish, Thanks for the program — I tried it, but would like to now uninstall. Can you tell me how to uninstall the program, as it doesn’t appear in the list of installed programs.

  5. How do we whitelist – can we just not allow what’s running now and then nothing else to install without a password – otherwise looks brilliant.

  6. White list feature is not available yet but we are planning to consider this in the next versions! 🙂

  7. Thanks for this product.Would be great if you can add options for people who want to get away from distraction.Like instead of password,a 128long alpanumeric code and time based restriction like cold turkey .Would be helful for people looking for selfrestriction .Do let us know if there are any such plans in the future.

  8. Nice app.. But hidden mode doesn’t make sense, Program Blocker pop-up for login every time you restart your PC..

  9. Yes I can conform what Klint says about it popping up when you restart your pc. Also after trying to make and save changes in the settings part of the app, I get first get error on click of save link to error #1: then here is the log from that error: Then when i close the program and open it again and click on settings, this pops up: so for me the program doesnt even work. running w7 x64 framework 4.5 and 3.5 Any help appreciated!

  10. I think this is a great App, I am running it on Windows Vista. I like the hidden mode, but when hidden it still shows up in the taskbar near the clock. My daughter could easily click on it and disable the blocker. Please let me know how to remove it without stopping the program.

  11. if i change name of exe file. e.g if i change skype.exe file to abc.exe in program files folder , your application does not block the exe file anymore. And opens skype.

  12. I think this application is great. I have run across an issue. I was testing the program, and I added Google Chrome as a block program. The program asks for a password. I enter the password, and then run the program find. After I am done, I enable the blocker. When I run Chrome, it prompts for a password, but the password I enter is left in the box. It does not clear the password. Is this something I can change in the .xlm or setting to clear the password?

  13. Thanks Ken for pointing out the issue! I will look into it and try to resolve the issue in the next possible update!

  14. Thanks. I look forward to the update.
    One more thing I have found is when you have the software placed in the startup, it prompts for a password. If the program just runs at startup without prompting for a password, the program would be perfect.

  15. Maybe he can add MD5 hash check to his program. That would be smart because people can reread programs. I want to block Apps by MD5/SHA values!

  16. @Ahmad.Wissam — Program Blocker is portable. That means It does not require installation or uninstallation. If you recall, you did not have to install the downloaded app in order to run it.

    To remove the app from your system, simply delete the downloaded ZIP file, & the folder to which you unpacked the contents of the ZIP file.

    If you didn’t change the filename, the downloaded ZIP file is called progbloc. zip, & the main extracted folder should be called Progbloc. There are a few files in that folder, including the binary file TWC Program Blocker.exe.

  17. Lame… I downloaded this and launched it. Two major problems… first was I received a bunch of errors when trying to put the password in. Something about the executable string and wouldn’t proceed. The other defeats the entire purpose of this program… I can right click on icon at the toolbar and close it down. Which then opens the blocked program up to anyone. Even if I use “hidden” it still shows the toolbar icon.

    Anyway… was worth a shot. I have ONE application I want to block from my kids without having a whole stupid separate account for them to log into via the Parental Controls. Just wanted something I had to put a password or better yet a PIN in, to unlock to use thus blocking them.

  18. Nice virus my computer began running slow as a snail the second i started the program and there’s no way to remove it also my task manager has completely stopped working

  19. Hello,
    I ran the program and now forgot the password a week later, The “Forgot password” gives me an error. Now what?

  20. Hello,
    I ran the program and now forgot the password a week later, The “Forgot password” gives me an error. Now what?

    Mailbox unavailable. The server response was: access denied….

  21. Ran the exe, and after setting up my password and email, I couldn’t get in. The password, apparently, was incorrect. I tried to reset with my email, but this threw an error. Then, I tried to close the program or get it off my system. My task manager was replaced by this program. I didn’t find it in ‘programs and features’ so I assumed it was supposed to be a portable. So I went to delete the files but windows would not let me, saying that the file was in use. I tried to stop windows.exe and then stop this program (this would in effect stop the ‘file in use’ error) but windows recovered too fast. Even when I tried to run cmd, WITH /K to keep it open, it would close. I was forced to set a command that would run on startup to delete the file permanently. Even when I tried to restart the computer to run the script, this program tried to stop me from restarting. Is it just me, or was there somehting wrong with all this? Currently checking for system corruptions. Sorry, not a fan.

  22. Nice idea Lavish, and a promising program. But, when opening Program Blocker or trying to change settings I get weird .NET errors about system exceptions and alterations in the Program Files folder (?). Hope to see improvements in future versions (if you’re still working on this), but for now I won’t be able to use this as it’s supposed to run seamlessly and block the programs upon startup without user awareness. A- for UI, B- for bugginess :

  23. Hey there! Loving this program, except for 1 thing: the combo of Hidden Mode & Run at Startup means that it pops up as the first thing seen by the win10 user that it’s being implemented for. Any way around that?
    Thanks much

  24. I have the weirdest problem with Win10, that antivirus, malware bytes, and nothing finds or fixes. Something creates a bunch of folders on boot and writes them to my data drive D: The files include a master directory (hex string of up to 26 characters) with subdirectories and files within. These all have locked permissions inhibiting their deletion and inhibiting the changing of their security permissions. I moved all the D files to a network drive, wiped the drive, reformatted the drive, and copied all the directories and folders back to D. Although the BAD directories were NOT on the network drive because I didn’t move them, when the Moved Directories and files were copied back to D, up popped the ^&^%$ MAL directories and files again. Copying must have caused some embedded exe to run and create the directory triggered only by the Copy/Paste operation. If I knew what was causing this, I could use the program blocker on it, but how on earth can the exe be tracked down? Doesn’t seem to be a virus, all it does is create multiple instances of identical directories and subdirectories. Anybody had this weirdness and fixed it?

  25. Now the Billion Dollar Question!!, Does this Application block Tor Application on a single PC???
    Has anyone Tested?

  26. My computer is sabotaged by an software blocker. I finally have the chance to push it out of my way and “unlock” my PC. Thanks for this!

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