Seems to be related to a bug fixed with 1.0.1 but is now present again. Some installers (CCleaner, Rstudio) completely freeze and fail with a windows error bug just after granting UAC. Others like Chrome disappear after windows error message. Also cannot uninstall things. It seem to crash the windows installation service. Cannot uninstall unchecky without first suspending the service.
Customer support service by UserEcho