Ford Focus 2011 windows problem

Hi all 

if anyone will know this someone on here will I hope.

anyway I have a problem with my 2011 titanium x tonight I was picking up the wife and went to open the pasanger electric window but it would only open a little way then stop the light on the switch is flashing then when it comes back on it goes a little way and stops again.

i tried other windows the rear pasanger side was doing the same thing as well but driver side front and back are fine 

I have all the windows done up now I just had to keep waiting for the windows switch light to come on each time.

i have just started searching the Internet and the only thing I found was the same thing happened and the bloke took the earth off the battery for 5mins and reset the system.it seem to work until he had to reaplace the battery after a week as it went dead.

to add I have stop and start which has stopped working unless I run on a long journey and it will work for a bit so not sure if the battery is getting worse as it's the stock one so about 7 years old 

any help would be great please 

thanks Glenn