How to resolve the win7 command prompt cannot open a failure

First, modify the registry, in order to secure the registry, it is recommended to back up the registry in advance

1, first open the Start menu of the running dialog box, and then enter "regedit", click OK to open the registry;

2, then expand the [HKEY_LOCAL_MACHINESOFTWAREMicrosoftWindows ntcurrentversionimage File Execution Options] item in turn;

3, then delete the following existing items, if there is deleted, after the deletion of the registry can be closed.

Cmd.exe

Cmd.com

Msconfig.exe

Msconfig.com

360safe.exe

Avp.com

Avp.exe

Adam.exe

EGHOST.exe

IceSword.exe

Iparmo.exe

Kabaload.exe

KRegEx.exe

KvDetect.exe

Kvmonxp.kxp

Kvxp.kxp

MagicSet.exe

Mmsk.exe

NOD32.exe

PFW.exe

PFWLiveUpdate.exe

QQDoctor.exe

Ras.exe

Rav.exe

RavMon.exe

Regedit.exe

Regedit.com

Regedt32.exe

Runiep.exe

SREng.EXE

Trojdie.kxp

WoptiClean.exe

Second, or you disable the command prompt's functionality, you can open Local Group Policy, expand User Configuration-Administrative Templates-system options, locate and double-click the block Access command prompt item in the right window, and select Not configured.