ווינדוס 7 :
לבדוק DEFENDER תקין, אחרת להתקין https://support.microsoft.com/en-us/help/14210/security-essentials-download
אחר :
ב REGEDIT
HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Policies\Attachments
Right click Attachments, select New, and then click DWORD (32-bit) Value.
Type ScanWithAntiVirus as the value name, and then press Enter.
Right-click the new ScanWithAntiVirus DWORD value, and then click Modify.
In the Value data box, type 1, and then click OK.
Registry Editor - ScanWithAntiVirus DWORD value
Exit Registry Editor.
Log off and log in Windows to make the change take effect.
Open or save the program or file that you failed before.