Windows startup parameters

/3 GB
Increase the user address space from 2 GB to 3 GB. Increase the size of large databases and applications Program Performance. Only applicable to NT4 Enterprise Edition and 2000 Advanced Server Edition,
2000 Data Center Server version, XP or later windows.

/Basevideo
Load only the standard display drive (VGA. sys)

/Baudrate =
Specifies the baud rate in debugging mode. The default value is 19200. (For example,/baudrate = 115200)

/Bootlog
Log mode. Windows will generate the startup log % SystemRoot %/ntbtlog.txt

/Bootlogo
Displays the background image. The object name is boot.bmp and is stored in the Windows directory. This parameter must be the same
/Noguiboot is used together. The operating system must be XP or later.

/Break
Hal stops at the breakpoint during initialization. If it is not used with/debug, a blue screen (0x00000078 phase0 _ exception) will occur)

/Burnmemory =
The memory size that cannot be used. The unit is mb. It is similar to/maxmem =.

/Channel =
When/debugport = 1394 is specified, this parameter selects the channel for debugging. The value range is 0-62, and the default value is 0.

/Clklvl
After this parameter is specified, the x86 multi-processor Hal (halmps. dll) sets the system clock to the level trigger mode instead of the edge trigger.

/Cmdcons
This parameter must be passed when the Recovery Console is started and can only be used.

/Crashdebug
Debug mode is enabled, but it is activated only when a blue screen is displayed.

/Debug
Enter the debugging mode.

/Debugport =
Specify the debug port. For example,/debugport = com2,/debugport = 1394.

/Debugstop
Start debugging in text installation mode. It is only used for setupldr. Bin (use the debug version to achieve the best effect). This debugging mode is called
Boot debug, Which is earlier than kernel Debug. You can specify this parameter in winnt. Sif or txtsetup. Sif.

/Detecthal
For Windows Vista, the Hal type is automatically checked.

/Execute
Disable data protection. Applicable to XP SP2, 2003sp1.

/Fastdetect
Ntdetect does not detect devices on the serial port and parallel port. It accelerates startup. Applicable to Versions later than 2000. NT4: Use/noserialmice
Parameters.

/Intaffinity
With this parameter, the x86 multi-processor Hal (halmps. dll) will only allow the processor with the largest number to receive the interrupt request.

/Kernel =
/Hal =
Specify the location of the kernel image (ntoskrnl. EXE) and Hal (Hal. dll). ntldr will load the specified kernel and Hal and ignore the default.

/Lastknowngood
Use the last correct configuration.

/Maxmem =
Memory available, in MB. The available memory starts from scratch, and is different from/burnmemory =./maxmem = not considered
Memory holes.

/Maxprocspercluster =
X86 multi-processor Hal (halmps. dll) will force the APIC to use the cluster mode addressing.

/MININT
For Windows PE. With this parameter, the Configuration Manager (CM) will load the Registry Branch (hive) system in read-only mode, all
Changes are only stored in the memory.

/Nodebug
Do not enter the debugging mode. You can override/debug,/debugport,/baudrate,/debugstop, and other parameters.

/Noexecute =
Specifies the type of Data Execution Protection (DEP). It is only applicable to 32-bit systems, and the DEP of 64-bit systems is always enabled. There are the following types:
/Noexecute = optin enables the DEP function for the system core and specified image files.
/Noexecute = optout: Enable the DEP function for files other than the specified image.
/Noexecute = alwayson always enables the DEP function.
/Noexecute = alwaysoff disable DEP, same as/execute.

/Noguiboot
The startup background image is not displayed.

/Nolowmem
Do not use the 4G memory at the beginning. This parameter must be used with/PAE. The system must have more than 4G physical memory and support the PAE kernel.
(Ntkrnlpa.exe) must be enabled. this parameter is mainly used to test the compatibility of the device driver to large memory systems.

/Nopae
Kernel images that support PAE are not loaded.

/Noserialmice = [comx | comx, Y, Z...]
This parameter is an out-of-date parameter for NT4. It can be replaced by/fastdetect.

/Numproc =
Specify the number of available processors in a multi-processor system.

/Onecpu
Only one CPU is used in a multi-processor system.

/PAE
Starting with pae.ntldrwill begin ntkrnlpa.exe.

/Pcilock
The system will not automatically allocate Io and IRQ resources to the PCI device. All resources are allocated by the BIOS.

/Rdexportascd
This parameter must be specified when the ISO file is used as the ramdisk image. Otherwise, the unmountable_boot_volume error will occur.

/Rdpath =
Specifies the location of the SDI image file. You can use the arc path. If you use PXE technology to start the system, the SDI file can be on the TFTP server.
For Windows Server 2003 SP1, you can also use a CD image (ISO file), but it must be used with/rdexportascd.

/Rdimageoffset =
The starting offset of the disk image in the SDI file. This parameter is usually set to 4096. This parameter must be specified when you start an SDI file.

/Redirect
Redirects the input and output of the Emergency Management Service (EMS) to the serial port. You can specify redirect = and
Redirectbaudrate = parameter.

/Safeboot:
Start the system in safe mode. The system will only load the specified
There are three types of drivers and services:
/Safeboot: General Security Mode of minimal
/Safeboot: security mode with network connection
/Safeboot: dsrepair directory recovery mode
An optional additional parameter is (alternateshell), for example,/safeboot: Minimal (alternateshell)
After this additional parameter is used, the started shell is defined in the following registry key:
HKLM \ System \ CurrentControlSet \ safeboot \ alternateshell

/Scsiordinal:
Specify the ID of the SCSI controller to prevent the system from starting properly due to the addition of a new SCSI device.

/Sdiboot =
It is applicable to Windows XP embedded and is used to specify the location of the loaded SDI file. It is similar to/rdpath =.

/SOS
The loaded driver, system version number, physical memory size, and number of processors are displayed at startup.

/Timeres =
The x86 multi-processor Hal (halmps. dll) sets the system clock to the specified interval, in the unit of 100ns. Hal supports the following:
9766
19532
39063
78125
The default value is 7.8 ms (the last one)

/Usenewloader
For Windows vista.windows, you can use the new startup method to grant control permissions to winload.exe.

/Userva =
Similar to/3 GB, the size of the specified user address is 2048-3072 in MB.

/Win95
Chain the bootsect. w40 and simulate multiple startup operations for Windows 9x (such as renaming files ).

/Win95dos
Chain bootsect. Dos and simulate multiple startup operations, similar to/Win95.

/Year =
The specified year is used instead of the BIOS real-time clock. It was used to test the millennium bug.