This situation is not supported, and it is not a bug. I don’t think this situation happens very often. EmEditor should NOT open such a file while running as a lower privilege. The only way to open such a file is to run EmEditor as an Administrator, and then you can open any files without any problems. To run EmEditor as an Administrator while logging in as a user, you can right click on the EmEditor icon while pressing SHIFT key, and then choose “Run as administrator”.