The error code 0x80072Efe can occur when you are using the latest Windows update. The problem is this happens because you have a security vulnerability that has been found in the Windows update and this is being exploited by the hacker. This virus is showing up as a single line error, but it is actually a series of many errors that are all related to your PC. If you use the wrong update or you install an update that is unrelated to your system then this problem will occur and you will see the error code 0x80072Efe.
You may also have problems if you do not know what you are doing with your computer and you install a program that you cannot uninstall. This error is a big sign that you should get some help to help fix the problem that you are having. Most people will simply reboot their computer and hope that the problem is fixed. This could not be further from the truth. There are updates available that will help your computer run properly again and will eliminate any problems that you have.
It is recommended that you use a good antivirus and spyware software and scan your system regularly. You should also check for viruses and spyware and remove them on a regular basis. If you have the latest updates and anti-virus software then you will have no problems with your system. If you are having problems then you should go to the Microsoft support center and they will be able to provide assistance to you. Once you download and install these updates, then you should start your system up once again and you should have no problems at all.