A while ago I found out that the ‘Show Hidden Files and Folders’ option was not working properly on my computer. I did some Googling and found out that is caused by a spyware/adware/malware (whatever) that messes up the Windows Registry from updating properly, thus disabling the option to ‘Show Hidden Files and Folders’. The check box (radio button) works, but as soon as you close the Folder Options Window, the option is disabled again. Anyway, here are some ways to re-enable the option: