There are two way to check.first is you can directly check whether key contain A or not in binding like this:-. but i think this is not the better way so instead of this you can use ko.computed to check.
Check for operating system information in Windows 7. 1  Click the Start button , enter Computer in the search box, right-click Computer, and then click Properties. 2  Look under Windows edition for the version and edition of Windows that your PC is running.
Use shell:programsfor the Start-Menu folder in Windows-10!. If you download a Program from Internet the default download folder on Windows 10 is shell:download. THE INSTALLED PROGRAMS WITH UNINSTALL FEATURE. To uninstall programs in Windows 10 , press the key combination [Win-Logo]+[X]. Here simply click on Programs and Featuresand open Programs and Features in Windows-10. Then select the installed program inWindows 10, and viaright-click on the corresponding program, you will see an option to uninstall the program.(... see Image-2) FIND RUNNING PROGRAM PATH IN WINDOWS 10!.