Enable show hidden files & folders option
When you checked show hidden files & folders and applying nothing happen ? This will occur if the system is infected by Malware (Need to know more about viruses please refer my previous note), which modifies the CheckedValue registry value in below branches.
HKEY_LOCAL_MACHINE \ SOFTWARE \ Microsoft \ Windows \ CurrentVersion \ Explorer \ Advanced \ Folder \ Hidden \ NOHIDDEN
HKEY_LOCAL_MACHINE \ SOFTWARE \ Microsoft \ Windows \ CurrentVersion \ Explorer \ Advanced \ Folder \ Hidden \ SHOWALL
Step 1:
Go to Start >> Run >> (type) regedit
(right click on the little my computer icon)
Step 2:
Navigate to the registry folder HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\
CurrentVersion\Explorer\Advanced\Folder\Hidden\SHOWALL
Step 3:
Find a key called CheckedValue.
Double Click CheckedValue key and modify it to 1. This is to show all the hidden files.
furthermore you can check bellow values are placed correctly.
Windows Registry Editor Version 5.00
[HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\Advanced\Folder\Hidden]
"Text"="@shell32.dll,-30499"
"Type"="group"
"Bitmap"=%SystemRoot%\system32\SHELL32.dll,4
"HelpID"="shell.hlp#51131"
[HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\Advanced\Folder\Hidden\NOHIDDEN]
"RegPath"="Software\\Microsoft\\Windows\\CurrentVersion\\Explorer\\Advanced"
"Text"="@shell32.dll,-30501"
"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"
"Text"="@shell32.dll,-30500"
"Type"="radio"
"CheckedValue"=dword:00000001
"ValueName"="Hidden"
"DefaultValue"=dword:00000002
"HKeyRoot"=dword:80000001
"HelpID"="shell.hlp#51105"
Now you should be able to view all the hidden file. Good Luck !
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