Win7 delete file prompt permission is not correct Solution

Enter the topic, QQ has been used for a long time, I always feel that the startup is very slow now, after clicking the QQ icon, it takes at least 5 seconds to see the login interface, so I am ready to uninstall QQTM, but the uninstall is finished. I found that there are a lot of QQ related files in the installation directory. When I am preparing to completely delete them, I will prompt you to XXX permissions. . . ”, then Google took a look at the related articles about Win7 deleted files, the most said is the following method:
1, select the file or folder you want to delete, right click on the folder --> Properties - ->Switch to “Security<;tab-->click the “Advanced” button--> at the bottom right to switch to “Owner> tab-->Click below“Edit ”Button--> In the "Change owner to" box, click on your current username, change the owner of the file to the current username, such as Administrators, and check "Substitute" And the owner of the object & rdquo; option (folder), all the way to determine, so that you have ownership of the folder.
2, back to the "security" option in the "group or user name" in addition to the administrators, three other options are selected to delete, all clicks OK, ok.
After the actual operation, I still can't delete it (the operation is definitely correct), the prompt is still there, and some sayings are to create a registry file according to the prompt. After importing, there is a quick way to obtain administrator rights, and then you can Do any operation, this way because you want to change the registry, did not dare to try, but read a lot of comments, this method seems to be possible; finally thought of the security mode, then enter the safe mode to delete the folder, very simple and normal Deleted, the heart sneaked a hand, so I went to the blog garden to make a record. If it is determined that the file or folder to be operated is irrelevant, and the system prompts that it cannot be operated, then entering the safe mode is the best way.