How to fix chrome update loop “Nearly up-to-date! Relaunch Google Chrome to finish updating. Relaunch” 
This is a guide on how to fix chrome update loop message “ Nearly up-to-date! Relaunch Google Chrome to finish updating . Relaunch ”
Current version: 49.0.2623.39 dev-m (64-bit)
To verify open chrome and check the version in “ About ” page and then check if you get the above message with a Relaunch button. Then, recheck your chrome version in “ About ” page and see if it gives the same message.
If its still giving you the error message “Nearly up-to-date! Relaunch Google Chrome to finish updating. Relaunch”, then you can follow these steps to resolve this issue:
[ IMPORTANT : Please backup all your chrome bookmarks and other chrome related data before attempting this troubleshooting just to be on the safe side.]
Step 1 . Close all active chrome windows
Open task manger to check if there are any instance of chrome running.
If you are on Windows 8 / Windows 8.1 machine, Press CTRL+ALT+DEL together in your keyboard, and click “ Task Manager “.
Now, you will find chrome in the list, right click that and select “ End Task ” for any process that says “Google Chrome”.
Step 2 . Delete old chrome’s executable and folder
Now, Browse to the following folder:
*C:\Program Files (x86)\Google\Chrome\Application*
You will see two executable files there: chrome and new_chrome
Right click on chrome and select “ Delete “.
Now, rename executable file “ new_chrome ” to “ chrome “. So after renaming it will look like this:
Now, Delete the folder with the older version number. In my case, I deleted the folder “ 49.0.2623.39 “.
Step 3 . Verify chrome version
Open up your chrome browser. Check the “ About ”
It should now display the message “ Google Chrome is up to date .”
Ohhh yeaaa! You have successfully fixed the update issue! 