几条清理注册表垃圾的批处理（经试验是安全的）

reg delete "hkcu\Software\Microsoft\Windows\CurrentVersion\Applets\Paint\recent file list" /f
reg delete "hkcu\Software\Microsoft\Windows\CurrentVersion\explorer\findcomputermru" /f
reg delete "hkcu\Software\Microsoft\Windows\CurrentVersion\explorer\prnportsmru" /f
reg delete "hkcu\Software\Microsoft\Windows\CurrentVersion\Explorer\RunMRU" /f
reg delete "hkcu\Software\Microsoft\Windows\CurrentVersion\Explorer\RecentDocs" /f
reg delete "hkcu\Software\Microsoft\Windows\CurrentVersion\explorer\streammru" /f
reg delete "hkcu\Software\Microsoft\Windows\CurrentVersion\explorer\streams" /f
reg delete "hkcu\Software\Microsoft\Windows\CurrentVersion\explorer\TrayNotify" /f
reg delete "hkcu\Software\Microsoft\MediaPlayer\Player\RecentFileList" /f
reg delete "hkcu\Software\Macromedia\FlashPlayer" /f
reg delete "hkcu\Software\Microsoft\Internet Explorer\TypedURLs" /f
reg delete "hkcr\Software\RealNetworks\RealPlayer\6.0\Preferences\MostRecentClips1" /f
reg delete "hkcr\Software\RealNetworks\RealPlayer\6.0\Preferences\MostRecentClips2" /f
reg delete "hkcu\Software\Microsoft\Microsoft Management Console\Recent File List" /f
reg delete "hkcu\Software\Microsoft\Windows\CurrentVersion\Explorer\ComDlg32" /f
reg add "hkcu\Software\Microsoft\Windows\CurrentVersion\Applets\Paint\recent file list" /f
reg add "hkcu\Software\Microsoft\Windows\CurrentVersion\explorer\findcomputermru" /f
reg add "hkcu\Software\Microsoft\Windows\CurrentVersion\explorer\prnportsmru" /f
reg add "hkcu\Software\Microsoft\Windows\CurrentVersion\Explorer\RunMRU" /f
reg add "hkcu\Software\Microsoft\Windows\CurrentVersion\Explorer\RecentDocs" /f
reg add "hkcu\Software\Microsoft\Windows\CurrentVersion\explorer\streammru" /f
reg add "hkcu\Software\Microsoft\Windows\CurrentVersion\explorer\streams" /f
reg add "hkcu\Software\Microsoft\Windows\CurrentVersion\explorer\TrayNotify" /f
reg add "hkcu\Software\Microsoft\MediaPlayer\Player\RecentFileList" /f
reg add "hkcu\Software\Macromedia\FlashPlayer" /f
reg add "hkcu\Software\Microsoft\Internet Explorer\TypedURLs" /f
reg add "hkcr\Software\RealNetworks\RealPlayer\6.0\Preferences\MostRecentClips1" /f
reg add "hkcr\Software\RealNetworks\RealPlayer\6.0\Preferences\MostRecentClips2" /f
reg add "hkcu\Software\Microsoft\Microsoft Management Console\Recent File List" /f
reg add "hkcu\Software\Microsoft\Windows\CurrentVersion\Explorer\ComDlg32" /f
reg add "hkcu\Software\Microsoft\Windows\CurrentVersion\Policies\Explorer" /v "ClearRecentDocsOnExit" /t REG_DWORD /d 1 /f