Windows 10: bat files not being run when double clicked

Hi,

somethings has been changed in my win10 64b pro (Microsoft Windows [Version 10.0.17763.134]) box, and now I have issues with bat files:

When I double click on them, I get a cmd, empty that shows up for a couple of seconds, and then closes. The .bat is NOT run
Of I open a cmd can cd to the dir containing the .bat, and I type the first letters of the .bat, TAB does not complete the file name, it does complete filenames of exe files.

If I run the .bat from the cmd I opened in 2., it DOES run fine
I have checked "assoc .bat" and "ftype batfile" and both return expected values.
Any insight would be super useful...

Welcome to the forum. Have you tried changing the extention to cmd as bag is old MS-DOS cmd

You can try to reset the batch file association using the instructions in Option 2 here ( download the reg file for bat file and follow the instructions ) in case the registry entry for bat files has become corrupted.

Restore Default File Type Associations in Windows 10 | Tutorials

Samuria said:

Welcome to the forum. Have you tried changing the extention to cmd as bag is old MS-DOS cmd

thanks for the reply. Just tried it, same effect (cmd console shows for a couple of seconds, empty, then goes away, withour running the file contents)

das10 said:

You can try to reset the batch file association using the instructions in Option 2 here ( download the reg file for bat file and follow the instructions ) in case the registry entry for bat files has become corrupted.

Restore Default File Type Associations in Windows 10 | Tutorials

not sure if that would do anything, as I mentioned assoc/ftype return expected values. I did anyway,and testing again, the behaviour remains the same. Thanks!

What AV are you using? BitDefender?

RickC said:

What AV are you using? BitDefender?

just vanilla Windows Defender

You say Of I open a cmd can cd to the dir containing the .bat are you running it from the folder if not it needs the full path or to be in the path or it wont find it. \whats in the file anything which might trigger AV

Samuria said:

You say Of I open a cmd can cd to the dir containing the .bat are you running it from the folder if not it needs the full path or to be in the path or it wont find it. \whats in the file anything which might trigger AV

from a cmd, it runs fine both with the full path, and cd-ing to the forlder and running it without the path.

No it is nothing out of the ordinary, Windows Defender does not say anythying either....

vaderetro said:

somethings has been changed in my win10 64b pro (Microsoft Windows [Version 10.0.17763.134]) box, and now I have issues with bat files:
When I double click on them, I get a cmd, empty that shows up for a couple of seconds, and then closes. The .bat is NOT run Of I open a cmd can cd to the dir containing the .bat, and I type the first letters of the .bat, TAB does not complete the file name, it does complete filenames of exe files...

Well, you live and learn. Didn't know that TAB trick

I can confirm that in my Home x64 17763.134 double-clicking on a .bat works normally, as does TAB in a command prompt. Repeated TABs cycle through all existing extensions, including (in my test for 'M' in my user folder) .rtf, .bak, .bat and the link to "My Documents".

Try another user account, does it behave the same way?

Try adding a PAUSE statement as the first line in the .bat. Does it get that far? Or does it fail before even opening the .bat?

Maybe Controlled Folder Access is blocking it? Try temporarily turning it off and see if it makes a difference.

Enable or Disable Controlled Folder Access in Windows 10 | Tutorials