Win7 no comport in WEB IDE

Hi,
I have not found my case in Troubleshooting. So I'm describing the problem here.

• The Esp WIFI with the same cable works fine with Win10.
  
• In Win7 I've got the board in Windows Control Panel's 'Devices and Printers' page - 'STMicroelectronics Virtual COM Port (COM8)'. The status is Ok. The IDE reports 'searching ... no ports found'. I tried all different options: reinstalled drivers, reinstalled WEB-ide, reset and cleaned COM ports. No changes.
  Moreover when i Hold down the button, and then plug the board in while keeping it held, I get 'Red and Green light brightly for a fraction of a second, then they start 'pulsing', and sound signal of a connection to PC. But nothing happens on the side of IDE
  

Sun 2020.09.19

Hi @Vladimir,

Has this page been referenced?

https://www.espruino.com/Troubleshooting#my-board-doesn-t-appear-as-a-usb-serial-port-in-windows

See heading: 'My board doesn't appear as a USB . . . '
Instructions for pre Windows10

re: ''Red and Green light brightly for a fraction of a second, then they start 'pulsing''

Same link as above, see heading 'Espruino stopped working'
"If you get pulsing Red/Green LEDs, it's because . . . "

For clarification, is the intent to reflash the WiFi, or is it that the WebIDE just is not recognizing the COM port?

Have you tried the native ide? I think with the web ide you need to enable WebUSB in chrome via chrome://flags/#new-usb-backend

The native ide should work better when programming through the serial port though. (I use a pico though and windows 10, so your mileage may vary)

I think @parasquid is spot on here. It's a bit confusing but there are some a few different ways to run the Web IDE.

https://www.espruino.com/ide/ is the easiest but it needs an up to date chrome version for the Web Serial to work, and may require 'Web Serial' to be enabled via chrome://flags. If you're using this one then when you try and connect you should see a link called Status, and clicking that should tell you why certain things (eg Web Serial) aren't working.

The Chrome Web Store IDE should 'just work' though: http://www.espruino.com/Web+IDE#from-the-chrome-web-store

I did not know there is a difference btw Web-IDE and Web store IDE. In fact I use Web Store IDE. In the past it worked fine with the same PC and Win7, but something went wrong and I can not connect any more. I will provide later some screenshoots with the "status".
Are there any way that some antivirus or corporate security system can block access to the com port? There were some updates on PC to porvide more security

Are there any way that some antivirus or corporate security system can block access to the com port?

Sadly, yes. I think it's possible that they could have disabled access to the chrome.serial API as part of a corporate security lockdown.

I guess you could give https://www.espruino.com/ide/ a go and see if it's any better. You could also try installing the native app version: http://www.espruino.com/Web+IDE#as-a-native-application

installing the native app version: http://www.espruino.com/Web+IDE#as-a-nat­ive-application

It works! Thanks for the answer. I think it would be usefull to include this to the Troubleshooting page.