If none of those, as mentioned above, fixes worked for you, then we recommend you to upgrade your PSU or try to find some middle ground and lower the overclocked frequencies to get rid of the said error. In some instance the “Fatal Error: Rounding” error may be associated with your PSU; your PSU may not have the capacity to the handle the overclocked frequencies which you are trying to stabilize. These fixes are being tried and tested for the “Fatal Error: Rounding” error. We strongly believe that any of the fixes listed above will help in your case. This error is reported in all versions of Windows. Moreover, the said error can also be a result of corrupted or missing files. In this scenario, we strongly recommend to use a reliable third-party online automatic repair tool, that scan the system for the corrupted, missing system files and repair them automatically. We hope all the information mentioned in this article will help you to resolve the issue. If you have any queries or feedback, please write down the comment in the below comment box.