Bcdedit numproc For example, my laptop runs two processor cores, but I can tell Windows to use only one processor core by typing bcdedit /set numproc 1 I managed to change the numproc but it didn't do anything. Limiting the CPU to N Cores On an elevated command prompt Feb 23, 2009 · To re-enable full DEP, type bcdedit /set nx AlwaysOn Determining Number of Processor Cores Another useful Bcdedit option is the numproc option, which lets you determine how many processor cores Windows uses. It can be used for a variety of purposes, including creating new stores, modifying existing stores, and adding boot menu options. Jul 5, 2019 · I kept looking and found a solution. I rebooted and it fixed my problem. com Dec 15, 2021 · The BCDEdit /deletevalue command deletes or removes a boot entry option (and its value) from the Windows boot configuration data store (BCD). So, I changed this setting and now my PC won't boot (blue screen of death). Aug 22, 2025 · BCDEdit, a command-line tool, is used to ensure system stability through boot configuration management. Anonymous Jun 2, 2014, 3:57 AM Nov 24, 2020 · Posts : 16,704 7 X64 24 Nov 2020 #5 If you have set it to 0, you could try: bcdedit /deletevalue {default} numproc and bcdedit /deletevalue {default} truncatememory if you messed with the memory settings My Computers Birleyfold Posts : 10 Mar 29, 2009 · Bcdedit is a really powerful tool that Windows Vista and Windows 7 uses to manage the boot loader entries. Enter the following command: bcdedit/deletevalue {default} numproc Enter the following command: bcdedit/deletevalue {default} truncatememory Close the Command Prompt and restart the computer. May 12, 2023 · Boot Options: numproc The numproc option sets the number of logical processors to use. Nov 21, 2018 · Tools & knowledge for IT prosTesting the effects of different CPU and memory configurations is easiest when you run the tests on a powerful machine and restrict it to the required number of CPU cores and amount of RAM. Syntax To have the BCDEDIT tool set the numproc option for the currently Aug 26, 2024 · They are stored in a boot configuration data (BCD) store. When in Windows Automatic Repair, I open the Command Prompt and type the following two commands: bcdedit /deletevalue {default} numproc bcdedit /deletevalue {default} truncatememory Don't substitute anything for " {default}". You can add these parameters to the boot entries for Windows operating systems. Microsoft’s documentation of the relevant command is missing an essential parameter. Reinstalled my Pc and everything is fine again. A boot Jun 28, 2024 · 具体来说，下面的脚本做了几件事 自动获取管理员权限 调用 bcdedit 修改启动核心数的配置 显示启动核心数的配置用于核对 询问是否重启电脑 注意，要把12改成你的CPU对应的数值。 仅以大核启动 @ echo off :: BatchGotAdmin :------------------------------------- REM --> Check for Dec 15, 2021 · BCDEdit is a command-line tool for managing BCD. This section describes the boot options for supported versions of Windows that are related to developing, testing, and debugging drivers on computers with x86-based and x64-based processors. Use the BCDEdit /set command to configure specific boot entry elements, such as kernel debugger settings, memory options, or options that enable test-signed kernel-mode code or load alternate hardware abstraction layer (HAL) and kernel files. If this was the issue, you should be set. An in-depth overview of BCDEdit is provided in this post. Oct 29, 2024 · Step 2: Fix the BCD To revert the changes you made in the MSCONFIG “Advanced Boot Options” dialog, run these commands: bcdedit /deletevalue {default} numproc bcdedit /deletevalue {default} truncatememory bcdedit /deletevalue {default} usefirmwarepcisettings Press Enter after typing each command. Here are the commands you need. pcrisk. Press F8 when starting your computer. Nov 22, 2021 · bcdedit命令可调整开机vCPU和内存，如设置numproc、truncatememory、removememory，需重启生效，msconfig设置内存不准，微软建议用bcdedit，不同单位不可混用。 BCDEdit is a tool to modify the contents of the BCD, while bootrec is a tool to repair Windows startup in case of BCD or boot sector corruption. The BCDEdit /set command sets a boot entry option value in the Windows boot configuration data store (BCD). I was thinking of using bcdedit /deletevalue. That's how it's meant to be entered. BCDEDIT needs a boot manager to boot your system. I found this solution in the link: https://blog. Nov 23, 2022 · The BCDEdit /set command sets a boot entry option value in the Windows boot configuration data store (BCD) for Windows. (used bcdedit /set {default} numproc 2. This also returns the Id that is created. I can access the command prompt from my recovery partition. Bootrec uses bcdedit Jun 2, 2014 · Messed numproc on msconfig, bcdedit says : The boot configuration data store could not be opened. Apr 9, 2013 · Copy of existing config bcdedit /copy {current} /d "Windows 2008 R2 with NumProc" The current is a "well known" identifier . . But I don't know which parameter I should delete. Select Troubleshoot>Advanced Options>Command Prompt. cqc gmluy kxv ribmmdn rbywgyx bqmkb djk psyk ydcmq iokktr dyjcex kyeqade wlgvlq hfielzd wokzbc