if you updated ampps to the new version , closed your running ampps first.
stop running apache , mysql and ftp servers and ect...
than shut down the controlpanel ampps
run update and , after its done , it will run again however.....
warning , people that have subdomains or domains running or like vhost in the file httpd.cof better to make copy from this file or all your stuff will be deleted.
always backup php.ini or vhost.conf
----------------------- What i dont K'now must be born...
ON internet from 88/89 , working with computers from the year 1982 c64 , comodore , amiga and ect bbs