# Service not starting after reinstall **URL:** \ **Category:** General Support / Questions\ **Created:** [July 17, 2017, 1:52pm UTC](https://discussion.mcebuddy2x.com/t/service-not-starting-after-reinstall/258 "2017-07-17T13:52:43Z")\ **Posts on this page:** 1\ **Showing post:** 9
**Author:** ![RBoy](https://discussion.mcebuddy2x.com/letter_avatar_proxy/v4/letter/r/2bfe46/32.png) [@RBoy](https://discussion.mcebuddy2x.com/u/RBoy)\ **Post date:** [July 17, 2017, 10:46pm UTC](https://discussion.mcebuddy2x.com/t/service-not-starting-after-reinstall/258/9 "2017-07-17T22:46:47Z")
> [@rrst](#): > > Error: System.InvalidOperationException: This access control list is not in canonical form and therefore cannot be modified. That’s your issue, a corrupted file system. Did you go through the [installation issues](https://discussion.mcebuddy2x.com/t/24) page and see the problem on the canonical issues? > [@MCEBuddy FAQ - Install, Uninstall and Start Up Issues](https://discussion.mcebuddy2x.com/t/mcebuddy-solutions-to-installation-and-uninstallation-issues/24): > > Sometimes MCEBuddy will run into various issues while installing, uninstalling or starting the application. Listed below are some of the common error messages and resolution steps. Please make sure you DO NOT SKIP any step and ORDER is very important. ALWAYS perform a complete uninstall of the previous version of MCEBuddy before installing a new version. ALWAYS delete the previous installation of MCEBuddy (by default in the C:\Program Files\MCEBuddy2x) before installing a new version of M… --- _[View the full topic](https://discussion.mcebuddy2x.com/t/service-not-starting-after-reinstall/258)._