This option is not set by default, which means test-signed kernel-mode drivers on bit versions of Windows 10, Windows 8. After you run the BCDEdit command, restart the computer so that the change takes effect. For more information, see Introduction to Test-Signing. Cannot be set when secure boot is enabled. This value is ignored by Windows 7 and Windows 8. The OS loader removes this entry for security reasons. This option can only be triggered by using the F8 menu.
Someone must be physically present at the computer to trigger this option. By default, processor groups have a maximum size of 64 logical processors. You can use this boot configuration setting to override the size and makeup of a computer's processor groups for testing purposes. Processor groups provide support for computers with greater than 64 logical processors.
This boot option is available on bit versions of Windows 7 and Windows Server R2 and later versions. This boot option has no effect on the bit versions of Windows 7. Use the groupsize option if you want to force multiple groups and the computer has 64 or fewer active logical processors.
Use this option to help expose cross-group incompatibilities in drivers and components. You can use the groupaware option and the groupsize option to test driver compatibility to function with multiple groups when computer has 64 or fewer active logical processors.
The groupaware on setting ensures that processes are started in a group other than group 0. This increases the chances of cross-group interaction between drivers and components. The maxgroup on setting assigns NUMA nodes to groups in a manner that maximizes the number of groups for a particular computer.
The number of groups created is either the number of NUMA nodes the computer has, or the maximum number of groups supported by this version of Windows, whichever is smaller. The default behavior maxgroup off is to pack the NUMA nodes tightly into as few groups as possible. Use the maxgroup option if you want to use multiple groups, the computer has 64 or fewer active logical processors, and the computer already has multiple NUMA nodes.
This option can also be used to alter the default group configuration of a computer that has more than 64 logical processors. This option is available on bit versions of Windows 7 and Windows Server R2 and later versions. For example, the following command configures the current operating system loader to use one processor.
On bit editions of Windows, applications have 4 gigabyte GB of virtual address space available. The virtual address space is divided so that 2 GB is available to the application and the other 2 GB is available only to the system. The 4-gigabyte tuning feature, enabled with the increaseuserva option, allows you to increase the virtual address space that is available to the application up to 3 GB, which reduces the amount available to the system to between 1 and 2 GB.
Windows uses the remaining address space 4 GB minus the specified amount as its kernel-mode address space. See 4-Gigabyte Tuning Windows for additional information about this feature. When nolowmem on is specified, this option loads the operating system, device drivers, and all applications into addresses above the 4 GB boundary, and directs Windows to allocate all memory pools at addresses above the 4 GB boundary.
Note that the nolowmem option is ignored in Windows 8, Windows Server , and later versions of Windows. The pae parameter is valid only on boot entries for bit versions of Windows that run on computers with xbased and xbased processors. Hot-add memory supports memory devices that you can add without rebooting or turning off the computer.
In this case, because PAE must be enabled when the system starts, it is enabled automatically so that the system can immediately address extended memory that is added between restarts. Hot-add memory is supported only on Windows Server , Datacenter Edition; Windows Server for Itanium-Based Systems; and on the datacenter and enterprise editions of all later versions of Windows Server.
For Windows Server and later versions of Windows Server, it is supported for all processor architectures. This reliable program will ensure that all data and safety threats are removed from your computer. Your email address will not be published.
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