Windows operating system can be installed on your computer with many ways. You can take the help of CDs or DVDs or you can also download the Windows OS files with internet and installed it from there. But sometimes when you try to activate the installed files on your computer, you will get Windows activation error 0x8004fe2f. This is a very critical error issue after occurring which you cannot be able to activate or install the Windows properly on the computer. So, to remove activation error code 0x8004fe2f, you must go through manual or automatic fixing issue. For automatic fixing of the error, you can use Advanced System Repair tool in the computer.