How to access a file inside a computer using web ?

Answer 1

E:\\my photes\steve jops.jpg
This is the case if the picture, for example, by looking for it, is present in Partition E, and do not forget to put the image extension

Answer 2

You cannot. Use the file input provided by the browser, <input type="file">. Then you can read it with File Api, or upload to server.
To modify file, modify its data, compose new file and prompt user to download it.

Answer 3

Google drive