已重新安装作业系统 ..
Log的最后面一部分：
a08.eb4: supR3HardenedDllNotificationCallback: load 75a70000 LB 0x00012000 C:\Windows\system32\DEVOBJ.dll [fFlags=0x0]
a08.eb4: supR3HardenedScreenImage/LdrLoadDll: cache hit (Unknown Status 22900 (0x5974)) on \Device\HarddiskVolume2\Windows\System32\devobj.dll [lacks WinVerifyTrust]
a08.eb4: supR3HardenedScreenImage/NtCreateSection: cache hit (Unknown Status 22900 (0x5974)) on \Device\HarddiskVolume2\Windows\System32\dwmapi.dll [lacks WinVerifyTrust]
a08.eb4: supR3HardenedDllNotificationCallback: load 74010000 LB 0x00013000 C:\Windows\system32\dwmapi.dll [fFlags=0x0]
a08.eb4: supR3HardenedScreenImage/LdrLoadDll: cache hit (Unknown Status 22900 (0x5974)) on \Device\HarddiskVolume2\Windows\System32\dwmapi.dll [lacks WinVerifyTrust]
a08.eb4: supR3HardenedScreenImage/NtCreateSection: cache hit (VINF_SUCCESS) on \Device\HarddiskVolume2\Program Files\Oracle\VirtualBox\VBoxRT.dll [lacks WinVerifyTrust]
a08.eb4: supR3HardenedDllNotificationCallback: load 57260000 LB 0x00441000 C:\Program Files\Oracle\VirtualBox\VBoxRT.dll [fFlags=0x0]
a08.eb4: supR3HardenedScreenImage/LdrLoadDll: cache hit (VINF_SUCCESS) on \Device\HarddiskVolume2\Program Files\Oracle\VirtualBox\VBoxRT.dll [lacks WinVerifyTrust]
a08.eb4: supR3HardenedDllNotificationCallback: Unload 56090000 LB 0x009ae000 C:\Program Files\Oracle\VirtualBox\VirtualBox.dll [flags=0x0]
a08.eb4: supR3HardenedDllNotificationCallback: Unload 57260000 LB 0x00441000 C:\Program Files\Oracle\VirtualBox\VBoxRT.dll [flags=0x0]
a08.eb4: supR3HardenedDllNotificationCallback: Unload 57190000 LB 0x000c8000 C:\Windows\system32\OPENGL32.dll [flags=0x0]
a08.eb4: supR3HardenedDllNotificationCallback: Unload 58140000 LB 0x000e7000 C:\Windows\system32\DDRAW.dll [flags=0x0]
a08.eb4: supR3HardenedDllNotificationCallback: Unload 74010000 LB 0x00013000 C:\Windows\system32\dwmapi.dll [flags=0x0]
a08.eb4: supR3HardenedDllNotificationCallback: Unload 77540000 LB 0x0019d000 C:\Windows\system32\SETUPAPI.dll [flags=0x0]
a08.eb4: supR3HardenedDllNotificationCallback: Unload 75a70000 LB 0x00012000 C:\Windows\system32\DEVOBJ.dll [flags=0x0]
a08.eb4: supR3HardenedDllNotificationCallback: Unload 76020000 LB 0x0008f000 C:\Windows\system32\OLEAUT32.dll [flags=0x0]
a08.eb4: supR3HardenedDllNotificationCallback: Unload 76ed0000 LB 0x0015c000 C:\Windows\system32\ole32.dll [flags=0x0]
a08.eb4: supR3HardenedDllNotificationCallback: Unload 75810000 LB 0x00027000 C:\Windows\system32\CFGMGR32.dll [flags=0x0]
a08.eb4: supR3HardenedDllNotificationCallback: Unload 73bb0000 LB 0x00006000 C:\Windows\system32\DCIMAN32.dll [flags=0x0]
a08.eb4: supR3HardenedDllNotificationCallback: Unload 6bd60000 LB 0x00022000 C:\Windows\system32\GLU32.dll [flags=0x0]
a08.eb4: supR3HardenedDllNotificationCallback: Unload 77030000 LB 0x0004e000 C:\Windows\system32\GDI32.dll [flags=0x0]
a08.eb4: supR3HardenedDllNotificationCallback: Unload 77220000 LB 0x0000a000 C:\Windows\system32\LPK.dll [flags=0x0]
a08.eb4: supR3HardenedDllNotificationCallback: Unload 774a0000 LB 0x0009d000 C:\Windows\system32\USP10.dll [flags=0x0]
a08.eb4: supR3HardenedDllNotificationCallback: Unload 776e0000 LB 0x000c9000 C:\Windows\system32\USER32.dll [flags=0x0]
a08.eb4: supR3HardenedDllNotificationCallback: Unload 77180000 LB 0x000a0000 C:\Windows\system32\ADVAPI32.dll [flags=0x0]
a08.eb4: supR3HardenedDllNotificationCallback: Unload 75ac0000 LB 0x00019000 C:\Windows\SYSTEM32\sechost.dll [flags=0x0]
a08.eb4: supR3HardenedDllNotificationCallback: Unload 76170000 LB 0x000a2000 C:\Windows\system32\RPCRT4.dll [flags=0x0]
a08.eb4: supR3HardenedDllNotificationCallback: Unload 75f70000 LB 0x000ac000 C:\Windows\system32\msvcrt.dll [flags=0x0]
a08.eb4: supR3HardenedMonitor_LdrLoadDll: returns rcNt=0xc0000022 'C:\Program Files\Oracle\VirtualBox\VirtualBox.dll'
a74.978: supR3HardNtChildWaitFor[1]: Quitting: ExitCode=0x1 (rcNtWait=0x0, rcNt1=0x0, rcNt2=0x103, rcNt3=0x103, 390 ms, the end);
启动虚拟机时总会好长一段时间无响应，而且无响应时Log的内容会停留在这里：
supR3HardenedVmProcessInit: Returning to LdrInitializeThunk..

VirtualBox已是最新版本，OperatingSystem已经重灌

好像把log文件删到只剩一个就可以启动了

楼主解决了码