UserAgent: Mozilla/5.0 (Windows NT 6.1; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/62.0.3202.89 Safari/537.36

Steps to reproduce the problem:
1. open chrome browser open some tabs , 
2. now dont use this browser for some time 
3. and see you will automatically get a popup saying chrome isn't working , 
4. try to close the browser it wont allow to do so , 
5. try to minimize other apps wont allow to do so , 
6. check running processes multiple chrome.exe running would be visible 

What is the expected behavior?
chrome browser should not get hanged and then crashed even if its unattended for a while , also there should be only one chrome.exe process seen in running state 

What went wrong?
chrome browser being kept unattended is hanging and crashing and multiple chrome processes are seen under running processes making it difficult to tackle the problem i.e even closing the browser becomes difficult 

Crashed report ID: no

How much crashed? Whole browser

Is it a problem with a plugin? No 

Did this work before? N/A 

Chrome version: 62.0.3202.89  Channel: stable
OS Version: 6.1 (Windows 7, Windows Server 2008 R2)
Flash Version: 

This issue is coming for last 4-5 days earlier everything was working fine