Windows 11 Readiness Diagnostic Worksheet for a Kirksville PC

When Windows 11 rejects a computer, the useful next step is not to call the machine obsolete.

It is to determine which requirement failed, whether that failure is upgradeable, and whether the hardware is otherwise healthy.

This worksheet is for that diagnosis.

Record the exact machine first

Before changing anything, record:

• manufacturer and model;
• CPU model;
• installed RAM;
• storage type and capacity;
• BIOS or UEFI version;
• current Windows version;
• battery condition on a laptop;
• storage health.

That creates a baseline before troubleshooting settings or buying parts.

Check the CPU separately

Microsoft's Windows 11 requirements include a supported 64-bit processor with at least two cores and a clock speed of 1 GHz or faster.

The supported-CPU list matters.

A processor can be fast enough in everyday use and still fall outside the supported Windows 11 list.

On most laptops, the CPU is not a practical upgrade item.

Mark this result as:

• supported;
• unsupported;
• not yet verified.

Check TPM 2.0

Windows 11 requires TPM 2.0.

On some systems the hardware supports TPM but the feature is disabled in firmware.

Before declaring the computer incompatible, check whether TPM exists and whether it is enabled.

Do not enable firmware settings blindly on a machine using drive encryption without understanding the recovery implications.

Record:

• TPM present;
• TPM version;
• enabled or disabled.

Check UEFI and Secure Boot capability

Windows 11 requires UEFI firmware with Secure Boot capability.

Again, capability and current configuration are different questions.

A machine can support Secure Boot without currently using it.

Record whether the system is:

• UEFI-capable;
• currently booting in UEFI mode;
• Secure Boot capable;
• Secure Boot enabled.

RAM may be an upgradeable failure

Microsoft's minimum requirement is 4 GB of RAM.

That is a minimum, not a statement that 4 GB is comfortable for every workload.

If RAM is the problem, determine:

• how much is installed;
• whether memory is soldered;
• how many slots exist;
• maximum supported capacity;
• cost of a practical upgrade.

Unlike an unsupported CPU, insufficient RAM may be easy to correct.

Storage may also be upgradeable

Windows 11 requires at least 64 GB of storage.

A machine can fail storage requirements because the installed drive is too small even though the computer supports a larger SSD.

Check:

• drive health;
• drive interface;
• physical size;
• upgrade options;
• free space versus total capacity.

Do not spend money upgrading a machine whose existing storage is already failing until the broader hardware condition is understood.

Separate Windows eligibility from computer health

A healthy machine can be unsupported by Windows 11.

An eligible machine can also be in poor physical condition.

Check for:

• failing storage;
• overheating;
• unstable memory;
• damaged battery;
• intermittent charging;
• broken hinges or ports;
• unreliable networking.

These findings belong in the same worksheet because they affect whether further investment makes sense.

Record the result without making the decision yet

The final diagnostic record should say something like:

Windows 11 status - CPU: unsupported - TPM 2.0: present - Secure Boot: supported - RAM: 8 GB - storage: healthy 500 GB SSD

Hardware condition - cooling: normal - battery: weak - network: stable

That tells the owner what the actual problem is.

It does not automatically prescribe repair, replacement or Linux.

Why this worksheet deserves its own step

The decision articles can explain what options exist.

This diagnostic step produces the evidence those decisions should be based on.

A computer should not be replaced because of a vague "too old" message when the real finding might be:

• one disabled firmware feature;
• one upgradeable component;
• one hard CPU-support boundary;
• or a completely separate hardware failure.

Diagnosis comes first.