Though, Microsoft has yet to comment on this heat problem, some users are taking upon themselves to find a fix. And according to a Microsoft Support forum thread, user Step_001 states that the issue appears to be caused by the Windows Installer Module and Windows Installer Module Worker. These processes will start running without apparent reason and will spike the Surface Pro 3 processor and memory really high causing the device to overheat and making the fan loud and annoying. Some users in the same Microsoft Support thread agree that going to the Task Manager and ending these two processes, temporarily solves the heat and the annoying loud fan. It’s worth noting that this is not a fix documented by Microsoft and it isn’t clear if the procedure will fix the problem to every Surface Pro 3 Core i7 overheating issue. (If you’re experiencing the issue, it doesn’t hurt to try.) If the problem actually cause a software bug in Windows 8.1, we can expect Microsoft to issue an update soon, but if it’s a design or hardware problem, this could become something very complex to address for the company. Source Microsoft via Neowin | Reddit thread on Surface Pro 3 overheating All content on this site is provided with no warranties, express or implied. Use any information at your own risk. Always backup of your device and files before making any changes. Privacy policy info.