Смотрите решение в этой статье:
Устранение неполадок, связанных с пропаданием значков сетевых подключений в Windows Server 2003 и Windows XP
можете еще попробовать твик реестра - код скопируйте в текстовый файл, сохраните его с расширением reg, запустите и согласитесь с внесением изменений в реестр:
Код:
Windows Registry Editor Version 5.00
[HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Policies\Explorer]
"NoSaveSettings"=dword:00000000
[HKEY_LOCAL_MACHINE\Software\Microsoft\Windows\CurrentVersion\Run]
"SystemTray"="SysTray.Exe"
[HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\Nla]
"Start"=dword:00000002
[HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\Netman]
"Start"=dword:00000002
[HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\drivers.desc]
"ctwdm32.dll"="Creative inf(WDM)"
"wdmaud.drv"="Creative EMU10K1 Audio Processor (WDM)"
"msaud32.acm"="Windows Media Audio Codec"
"sl_anet.acm"="Sipro Lab Telecom Audio Codec"
"C:\\WINDOWS\\system32\\iac25_32.ax"="Indeo® audio software"
"ir50_32.dll"="Indeo® video 5.10"
"C:\\WINDOWS\\system32\\l3codeca.acm"="Fraunhofer IIS MPEG Layer-3 Codec"
"sirenacm.dll"="MSN Messenger Audio Codec"
"mciavi32.dll"="mciavi32.dll"
"mcicda.dll"="mcicda.dll"
"mciseq.dll"="mciseq.dll"
"mciwave.dll"="mciwave.dll"
"mciqtz32.dll"="mciqtz32.dll"
"midimap.dll"="midimap.dll"
"imaadp32.acm"="imaadp32.acm"
"msadp32.acm"="msadp32.acm"
"msg711.acm"="msg711.acm"
"msgsm32.acm"="msgsm32.acm"
"tssoft32.acm"="tssoft32.acm"
"iccvid.dll"="iccvid.dll"
"msh263.drv"="msh263.drv"
"ir32_32.dll"="ir32_32.dll"
"ir41_32.ax"="ir41_32.ax"
"iyuv_32.dll"="iyuv_32.dll"
"msrle32.dll"="msrle32.dll"
"msvidc32.dll"="msvidc32.dll"
"msyuv.dll"="msyuv.dll"
"tsbyuv.dll"="tsbyuv.dll"
"msacm32.drv"="msacm32.drv"
"msg723.acm"="msg723.acm"
"msh261.drv"="msh261.drv"
[HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Drivers32]
"midimapper"="midimap.dll"
"msacm.imaadpcm"="imaadp32.acm"
"msacm.msadpcm"="msadp32.acm"
"msacm.msg711"="msg711.acm"
"msacm.msgsm610"="msgsm32.acm"
"msacm.trspch"="tssoft32.acm"
"vidc.cvid"="iccvid.dll"
"vidc.I420"="msh263.drv"
"vidc.iv31"="ir32_32.dll"
"vidc.iv32"="ir32_32.dll"
"vidc.iv41"="ir41_32.ax"
"vidc.iyuv"="iyuv_32.dll"
"vidc.mrle"="msrle32.dll"
"vidc.msvc"="msvidc32.dll"
"vidc.uyvy"="msyuv.dll"
"vidc.yuy2"="msyuv.dll"
"vidc.yvu9"="tsbyuv.dll"
"vidc.yvyu"="msyuv.dll"
"wavemapper"="msacm32.drv"
"msacm.msg723"="msg723.acm"
"vidc.M263"="msh263.drv"
"vidc.M261"="msh261.drv"
"msacm.msaudio1"="msaud32.acm"
"msacm.sl_anet"="sl_anet.acm"
"msacm.iac2"="C:\\WINDOWS\\system32\\iac25_32.ax"
"vidc.iv50"="ir50_32.dll"
"msacm.l3acm"="C:\\WINDOWS\\system32\\l3codeca.acm"
"msacm.siren"="sirenacm.dll"
"wave"="wdmaud.drv"
"midi"="wdmaud.drv"
"mixer"="wdmaud.drv"
[HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Drivers32\Terminal Server]
[HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Drivers32\Terminal Server\RDP]
"wave"="rdpsnd.dll"
"mixer"="rdpsnd.dll"
"MaxBandwidth"=dword:000056b9
"wavemapper"="msacm32.drv"
"EnableMP3Codec"=dword:00000001
"midimapper"="midimap.dll"
Предварительно
обязательно сделайте резервную копию реестра.
