On Windows 7 I am creating a system image of the system drive (C: in my case) onto an external USB harddisk. The process is taking long (has been running for an hour now).
My question: I am taking care not to make any changes to the C: drive while the system image is being created (i.e. I am not creating any files on the desktop, etc.). But surely, there will be changes to the system drive, because I am accessing the web and therefore, the browser is updating its cache, etc. How does Windows maintain consistency during the image create operation? Am I being overly cautious by not creating any files? Or should I not even run a browser while the image create is going on?