Windows 8 移除了「公文包」功能，但可透過修改登錄檔恢復。公文包提供簡單的離線資料同步，不需依賴網路 (如 SkyDrive)。推測微軟為推廣雲端服務而移除，但仍可手動啟用。

將以下內容儲存為 Briefcase.reg，雙擊匯入登錄檔即可恢復公文包功能：

Windows Registry Editor Version 5.00

[HKEY_LOCAL_MACHINE\SOFTWARE\Classes\Briefcase\ShellNew]
"IconPath"=hex(2):25,00,53,00,79,00,73,00,74,00,65,00,6d,00,52,00,6f,00,6f,00,74,00,25,00,5c,00,73,00,79,00,73,00,74,00,65,00,6d,00,33,00,32,00,5c,00,73,00,79,00,6e,00,63,00,75,00,69,00,2e,00,64,00,6c,00,6c,00,2c,00,30,00,00,00
"ItemName"=hex(2):40,00,25,00,53,00,79,00,73,00,74,00,65,00,6d,00,52,00,6f,00,6f,00,74,00,25,00,5c,00,73,00,79,00,73,00,74,00,65,00,6d,00,33,00,32,00,5c,00,73,00,68,00,65,00,6c,00,6c,00,33,00,32,00,2e,00,64,00,6c,00,6c,00,2c,00,2d,00,36,00,34,00,39,00,33,00,00,00
"Directory"=""
"Handler"="{85BBD920-42A0-1069-A2E4-08002B30309D}"

[HKEY_LOCAL_MACHINE\SOFTWARE\Classes\Briefcase\ShellNew\Config]
"IsFolder"=""
"NoExtension"=""