How to Fix Error 0164: Memory Size Decreased?

Error 0164: Memory Size Decreased

Error 0164 memory size decreased indicates that there are some changes with the size of RAM, leading to BIOS being unable to identify it. Therefore, your Windows device might have some boot issues. Usually, you might receive such memory size errors with two fast beeps after installing RAM or removing an installed RAM.

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How to Fix Error 0164 Memory Size Decreased?

Fix 1: Change BIOS Settings

To fix a boot error like error 0164 memory size decreased, you can choose to change BIOS settings to its defaults. To reset BOIS, you need:

Move 1: Enter BIOS

If your computer cannot boot and it is stuck in the error 0164 memory size decreased screen, you can press F1 to enter the BIOS according to the message at the bottom of the screen.

If you skip 164 memory size error and you can enter your system, follow these steps:

Step 1. Go to Start > Windows Settings > Update & Security > Recovery > Restart now under Advanced startup. Then, your Windows device will restart right now and enter into Windows recovery environment.

Step 2. In the pop-up windows, click on Troubleshoot > Advanced options > UEFI Firmware Settings to boot your computer to UEFI BIOS.

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Move 2: Change BIOS Settings

Step 1. Use the arrow keys on the keyboard to find BIOS setup default options. The name might be different on various devices such as Load Setup Defaults, Load Default, Load Default Settings, Load BIOS Defaults, Load Optimal Defaults and more.

Step 2. After finding it, press the Enter key to select it.

Step 3. In the pop-up window, select Yes and hit Enter.

Step 4. Press F10 to save the changes and exit.

Fix 2: Clear CMOS

Another way to fix memory size error on startup is to clear CMOS.

Step 1. Power off your computer and remove all the peripheral devices connected to your computer.

Step 2. Disconnect the power cord form the AC power source.

Step 3. Remove the computer and then find the battery on the board. The battery might be in a horizontal or vertical battery holder, or connected to an onboard header with a wire.

Step 4. Then, you need to remove the battery. If it is on a holder, pay attention to the orientation of the + and – on the battery. Then pry it from its connector with a medium flat-blade screwdriver.

If the battery is connected to an onboard header with a wire, disconnect the wire from the onboard header and then follow these steps:

Step 1. Wait for several minutes and reconnect the battery to your PC.

Step 2. Put the computer cover back on and plug all the peripheral devices.

Step 3. Press the power button to reboot your Windows machine. Then your computer might boot normally without error 0164 memory size decreased.

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