Solved the problem of "Hiding protected operating system files"

Method 1: break through

"Hiding protected operating system files" cannot be displayed"

Open the registry and change the checkedvalue to "0" (hexadecimal value) under HKEY_LOCAL_MACHINE \ SOFTWARE \ Microsoft \ Windows \ CurrentVersion \ Explorer \ Advanced \ Folder \ superhidden ); change the ultvalue key to "0" (hexadecimal value), and The uncheckedvalue to "1" (hexadecimal value ). You can.

Solution to "show all files and folders" Failure
Start -- run -- enter Regedit --
In [HKEY_LOCAL_MACHINE \ SOFTWARE \ Microsoft \ Windows \ CurrentVersion \ Explorer
\ Advanced \ Folder \ Hidden \ showall]
Change the value of checkedvalue to 1.

Solution without "Folder Options"

Start -- run -- gpedit. MSC -- user configuration -- management template -- Windows Components -- Windows resource manager -- delete the "Folder Options" menu from the "Tools" menu (if not configured, return to the "Folder Options" menu)

Method 2

"Hide protected operating system files" cannot be displayed after you select this option due to viruses in the past few days ".

In this case, you can store the following content as the showall. reg file, and double-click the file to import it to the Registry.

Windows Registry Editor Version 5.00

[HKEY_LOCAL_MACHINE \ SOFTWARE \ Microsoft \ Windows \ CurrentVersion \ Explorer \ Advanced \ Folder \ Hidden \ nohidden]
"Regpath" = "SOFTWARE \ Microsoft \ Windows \ CurrentVersion \ Explorer \ Advanced"
& Quot; text & quot; = & quot; @ shell32.dll,-30501 & quot"
"Type" = "radio"
"Checkedvalue" = DWORD: 00000002
"Valuename" = "hidden"
"Defaultvalue" = DWORD: 00000002
"Hkeyroot" = DWORD: 80000001
"Helpid" = "shell. HLP #51104"

[HKEY_LOCAL_MACHINE \ SOFTWARE \ Microsoft \ Windows \ CurrentVersion \ Explorer \ Advanced \ Folder \ Hidden \ showall]
"Regpath" = "SOFTWARE \ Microsoft \ Windows \ CurrentVersion \ Explorer \ Advanced"
& Quot; text & quot; = & quot; @ shell32.dll,-30500 & quot"
"Type" = "radio"
"Checkedvalue" = DWORD: 00000001
"Valuename" = "hidden"
"Defaultvalue" = DWORD: 00000002
"Hkeyroot" = DWORD: 80000001
"Helpid" = "shell. HLP #51105"

[HKEY_LOCAL_MACHINE \ SOFTWARE \ Microsoft \ Windows \ CurrentVersion \ Explorer \ Advanced \ Folder \ superhidden]
"Type" = "checkbox"
& Quot; text & quot; = & quot; @ shell32.dll,-30508 & quot"
"Warningifnotdefault" = "@ shell32.dll,-28964"
"Hkeyroot" = DWORD: 80000001
"Regpath" = "SOFTWARE \ Microsoft \ Windows \ CurrentVersion \ Explorer \ Advanced"
"Valuename" = "showsuperhidden"
"Checkedvalue" = DWORD: 00000000
"Uncheckedvalue" = DWORD: 00000001
"Defaultvalue" = DWORD: 00000000
"Helpid" = "shell. HLP #51103"

[HKEY_LOCAL_MACHINE \ SOFTWARE \ Microsoft \ Windows \ CurrentVersion \ Explorer \ Advanced \ Folder \ superhidden \ Policy]

[HKEY_LOCAL_MACHINE \ SOFTWARE \ Microsoft \ Windows \ CurrentVersion \ Explorer \ Advanced \ Folder \ superhidden \ Policy \ dontshowsuperhidden]
@ = ""

Procedure:
1) create a file in Notepad
2) copy the preceding content to the new notepad file.
3) save it as showall. Reg through the notepad file menu.
4) double-click the stored showall. reg file and click the button in the pop-up dialog box.

Note: The above method is effective for Win2000 and XP

the second method is created by an expert! Thank you