Solution to explicit file extension and file hiding failure

Today, I do not know the USB flash drive, and a worm virus exists. As a result, both the hidden folder and the file extension are invisible. It is difficult to modify the folder settings. Now record the solution process:

Http://csc.rising.com.cn/KnowledgeBase/detailInfo.aspx? Channel = rsq & Action = viewinfo & info id = 711

The above is the method provided by rising, and the hidden folder can be displayed.

Scan the virus and find:

VirusScan Enterprise:

File c: \ windows \ system32 \ isass.exe is infected with the virus generic. dx Trojan. The file has been deleted.

Nt authority \ System svchost.exe E: \ autorun. inf generic component (Trojan)

Nt authority \ System svchost.exe c: \ autorun. inf generic component (Trojan)

PISC-0001 \ sun assumer.exe c: \ windows \ MDM. EXE BackDoor-DKr (Trojan)

Despite virus detection, macpers still fail to repair the system.

Save the following text as show_ext.reg. After the command is executed, the system recovers.

Windows Registry Editor Version 5.00

[HKEY_LOCAL_MACHINE \ SOFTWARE \ Microsoft \ Windows \ CurrentVersion \ Explorer \ Advanced \ Folder \ hidefileext]
"Type" = "checkbox"
& Quot; text & quot; = & quot; @ shell32.dll,-30503 & quot"
"Hkeyroot" = DWORD: 80000001
"Regpath" = "SOFTWARE \ Microsoft \ Windows \ CurrentVersion \ Explorer \ Advanced"
"Valuename" = "hidefileext"
"Checkedvalue" = DWORD: 00000001
"Uncheckedvalue" = DWORD: 00000000
"Defaultvalue" = DWORD: 00000001
"Helpid" = "shell. HLP #51101"