Because there is no decompressing software, the newly purchased machine usually has a stuff installed The format of the program you downloaded is too unclear
It is better not to use 91 assistant because this software is very unstable, which often leads to white apples. Because 91 assistant uses the PXL format to install or uninstall software, which will leave a lot of garbage. Uninstalling software or games will always fail to uninstall or the uninstallation is incomplete, causing system paralysis
If you cannot log in, exit the application. Select the application to be closed as the current window, and then press the shortcut key command+Q at the same time or right-click the program icon on the dock to exit.