I am not sure exactly what the problem area is, but any help or guidance would be gratefully received.
Two laptops, near identical spec.
1) both running Windows 10 pro, 64-bit operating system, X 64 based processor.
2) machine one....i5,6gb ram,256 ssd
machine two....i7,8gb ram,256ssd
3) both have office 2013, home and business, stand-alone.
4) I have had both office 2010 and 2013 installed on both.
I have kept 2010 because I use two add-ins for excel which do not play well with office 2013.
I have been having increasing problems with machine 2, lock-ups etc, probably due to 10 updates; only occurring in about the last three weeks.
On machine 2, Microsoft message said problems caused by incompatibility of having 32-bit and 64-bit office installed on the same machine.
I duly uninstalled office 2010 and reinstall office 2013.
I am now in the crazy position where trying to load the same number of Excel worksheets that I used to use(Now with Excel 2013 only) now throws up error messages of the kind .. Out of memory and the Excel worksheet locks up.


I haven't attempted to make any changes to machine 1 and this is ticking along quite happily, Office 2010 and 2013 both installed, no error messages, no problems.
Excel 2010 happily works with the same number of worksheets as before.
I really have no idea what is happening.