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How to Fix 1801-Microcode Patch or Upate Error in HP Business-focused Desktop

Today, HP business-focused desktop computers are being widely used in the commercial industry, we can communicate with our customers by computers, and have a media meeting with our boss. But sometimes some problems will occur. When we install a new motherboard or CPU in HP business-focused desktop, it may prompt you with this message:1801-Microcode Patch or Update Error during the self-test process. At this moment, you can press F1 key to continue booting up the system, but the performance of the CPU will be limited and each time you boot up your computer, this error will be prompted. Is it very annoying? Here we will demonstrate how to fix the 1801-Microcode Error in HP business-focused desktop.

1801 error info

Due to different types of HP business-focused desktop. We will demonstrate how to fix the 1801-Microcode Path Error in them separately.

  1. Fix the 1801-Microcode Patch or Update Error in HP BIOS
  2. Fix the 1801-Microcode Patch or Update Error in HP UEFI Mode

Fix the 1801-Microcode Patch or Update Error in HP BIOS

Step 1: Go to the HP official site to download right BIOS program for the corresponding host from an accessible computer. And extract it and copy all the files whose filename ends up with .BIN in DOS Flash folder to a USB flash drive.

Step 2: Restart your target computer and press F10 key as soon as possible to boot to the HP BIOS. Then in HP BIOS, navigate to the File item and find Flash System Rom in its sub-item drop down list. In the prompted Flash System Rom dialog, choose USB as the first choice. Last, click F10 to continue the setting.

select drive from flash system rom

Step 3: Then you will see the previously copied file whose filename ends up with .BIN. Just select it and press F10 key to activate this setting.

select a file in USB

Step 4: Save changes and Exit HP BIOS, then restart your pc.

Fix the 1801-Microcode Patch or Update Error in HP UEFI Mode

If you find your computer runs HP UEFI Mode, then you should follow the under steps to fix this problem.

Step 1: Press F10 key as soon as you start your target computer. And select the Update System BIOS option under the category of Main item.

update system bios from main item

Step 2: In the coming dialog, choose Check HP.com for BIOS Updates option to update your BIOS settings to latest ones.

check for bios updates

Attention: You should keep your computer connecting to the internet in this process. And if your computer still prompt you that 1801-Microcode Patch error occurred, then you should go to HP official customer support site to consult your computer manufacturer.

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