Graphic: win7 and win8 dual system delete (win8) method

The operating system cannot be uninstalled directly like a program, and the low version cannot be rolled back to the old version after upgrading to a higher version. If you install win7
and win8 dual system, you want to delete win8. Very simple, the key is to delete the boot menu, and then delete the system file, the specific steps are as follows. 1, normal boot, in the boot system selection interface, select “ Windows 7 & rdquo; system. 2. After entering the system desktop normally, use the “Win+R” key to bring up the running dialog box, type “msconfig”, and click ““OK” button or enter. 3. In the pop-up system configuration interface, click the “Boot” tab, click ““Windows 8 (D:\\Windows) in the list: Default OS” make it selected, then click “delete” Button, and finally click the “OK” button. 4, the system will prompt to restart to apply the changes, to ensure that all current work has been saved, click the "Restart (R)" button. 5. When the system is restarted, it will not prompt any system selection information. Instead, it will directly boot Windows 7 as in the normal single system, and the advanced startup menu can still be called up using the F8 hotkey during the boot process. But we also need to enter the system to delete some texts and directories of the D drive (the original Windows 8 system disk). After entering the system desktop normally, open the computer or explorer and double-click the D drive. 6. In the root directory of the D drive, use the left mouse button and the Ctrl hotkey to select Perflogs, Program Files, Program Files (X86), and ProgramData (the default is hidden attribute, which does not delete or affect, the size is only five or six trillion) , Windows, users a total of six folders (do not delete any folders other than this, to avoid data loss). After selecting it, right click on the folder and select the “Delete(D)” button in the popup menu. 7. The system will remind you whether to confirm the deletion of multiple items. After confirming the correctness, click the “(Y)” button. 8. The system will automatically remove the relevant items to the recycle bin. If the confirmation data has no effect, you can clear the service station. If the data has an impact, you can restore it according to the actual situation. 9. If the system prompts that the folder access is denied, you can tick “Execute this operation for all current items” (A)& rdquo;, and then click the “Skip” button. 10. If you need to delete the directory with administrator privileges, you can right click on the directory and select the “Properties” button. As shown in the following figure, the ProgramData folder: 11. In the pop-up properties dialog box, click the “Advanced (V)” button under the “Security” tab. 12. In the Advanced Security Settings dialog that pops up, click the “Edit (E)…” button under the “Owners” tab. 13. Click on “Windows7 (Windows7-PC\\Windows7” in the owner change list) (Note: actually need to select the current administrator account, and the Windows7 account in the figure below is the administrator), then check the “ replace subcontainers and The owner of the object (R) & rdquo;, finally click the "OK" button. 14, the system will prompt information, click the "(Y) & rdquo; button directly. 15. Continue to click & ldquo; OK & rdquo; Button (Note: The processing time after the operation depends on the number of files.) 16. Then click the “Change Permissions (C)…” button under the “Permissions” tab. 17. Advanced Security Settings in the popup Interface, respectively, check "Include permissions (I)" that can be inherited from the object's parent, and "Replace all child object permissions (P)" with permissions that can be inherited from this object, and then click “OK&rdquo ; button 18. Then, according to the information dialog box prompted by the system, click the <;Yes (Y)” button (Note: processing time after operation) Depending on the number of members).