I recently found that the number of calls from users who could not OPEN or SAVE documents from our internal site was increasing. When I investigated, these users had had Internet Explorer 10 automatically download and install as part of Windows Update service. I looked through every element of the browser configurations I could think of that may have changed from a security standpoint, but found nothing that should have affected this ability. On one machine, I rolled back to version 9--which HAD worked fine--only to find that the ability to download (either OPEN or SAVE) was also affected now on version 9. I then rolled back to version 8, which no longer had the issue. But we don't want to leave version 8 on the machines for other reasons.
Does anyone know what security features were turned on with version 10 that would also have affected version 9? Is it a simple registry setting?