Ever since up grading to Windows 10 pro 64 bit I get a low memory error. Once I click ok my system crashes. Memory usage % has never exceded 50% as far as I can tell. After reboot % is only about 22%. Originally I only had 4gb ram with virtual memory set to auto at 4gb. I added 4gb additional ram which in turn upped my virtual memory to 8gb. I have noticed it only happens when I use IE11 with at most 4 pages open; i.e. facebook, news pages or mail. Windows 10 only requires 4gb ram, so with my upgrade of 4gb brings my total to 8gb. If you figure in virtual memory of 8gb I can see no reason for memory to "run low". Any ideas?