How to Disable Pre Boot System Performance Check?
To Disable Pre-Boot System Performance Check, follow these simple steps
Restart your computer.
As soon as it starts, repeatedly press the BIOS entry key (commonly F2, Del, F10, F12, or Esc—check your screen or manual for the correct key).
Once inside the BIOS/UEFI, look for sections labeled Boot, Advanced, Diagnostics, or Support Assist.
Specifically, search for options like:
Support Assist Pre-Boot System Performance Check
Support Assist OS Recovery
Pre-Boot Diagnostics
Always Perform Integrity Check
If you see any of the above options, set them to Disabled.
For Dell systems, you may find a checkbox for "SupportAssist OS Recovery"—uncheck or disable it
In some cases, you can bypass the pre-boot check by setting the Secure Boot option to AUDIT mode or disabling it altogether.
In the Boot Configuration tab, you may also want to deselect any HTTP(s) Boot options.
Press F10 to save changes and exit the BIOS/UEFI.
Your system should now boot without running the pre-boot system performance check.
By following these steps, you can disable the pre-boot system performance check and speed up your system’s startup