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A free scan shows the junk files, broken settings and background clutter dragging Windows down - then fixes them in one click.Free scan · Windows 10 & 11The “Windows 11 TPM bug” affecting some AMD Ryzen PCs is a firmware TPM (fTPM) stuttering issue—not a problem shown to be caused by Windows 11 itself. AMD traced intermittent pauses to extended fTPM transactions in motherboard SPI flash. Its documented lasting fix is a BIOS update from the PC or motherboard maker that includes the relevant fTPM changes; AMD specified AGESA 1207 or newer for the 2022 fix.
What the AMD Ryzen fTPM stuttering issue is
AMD says select Ryzen system configurations with fTPM enabled may intermittently perform extended memory transactions in SPI flash memory, also called SPIROM, on the motherboard. While a transaction is in progress, the computer can temporarily pause or become less responsive. AMD’s description covers both Windows 10 and Windows 11, so the issue is not established as Windows 11-specific.
The scope is limited to select configurations using AMD’s firmware TPM; the available official information does not give a count or percentage of affected PCs. It does not establish that every Ryzen system, every TPM implementation, or every Windows 11 computer is affected. See AMD’s fTPM stutter support FAQ for its explanation and remedy.
How to check whether fTPM is enabled and TPM is working
Windows 11 requires TPM 2.0, which Windows features such as Windows Hello and BitLocker can use. Microsoft advises checking the TPM status before changing firmware settings.
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- Press Windows key + R, enter
tpm.msc, and press Enter. - In the TPM Management window, check that the status says the TPM is ready for use and that the Specification Version is 2.0.
- To find the firmware setting, consult the exact PC or motherboard maker’s instructions. Names can vary; examples include “AMD fTPM switch” and “AMD PSP fTPM.”
Microsoft’s TPM 2.0 guidance explains how to check availability and why settings differ among devices. A TPM that is ready and reports version 2.0 confirms its status, but does not by itself establish whether a particular pause was caused by fTPM.
Which BIOS update fixes AMD fTPM stuttering?
AMD’s documented lasting correction is a system BIOS update containing enhanced fTPM/SPIROM interaction modules, based on AGESA 1207 or newer. BIOS releases are issued by motherboard and computer manufacturers, and their timing and availability vary. Use the support page for the exact model and follow that maker’s update instructions; do not install firmware for a different board or PC.
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- Identify the exact computer or motherboard model and current BIOS version using the manufacturer’s instructions.
- Open that model’s official support page and review the BIOS release notes for the fTPM stuttering fix and the relevant AGESA version.
- Follow the manufacturer’s instructions for preparing and applying the update. Before proceeding, account for BitLocker or other TPM-backed encryption, including recovery-key access.
ASUS provides one concrete example, not a universal version number: its A320M-A/FPT support history lists BIOS 6042, dated May 13, 2022, with AGESA V2 PI 1.2.0.7 and a note that it fixes AMD fTPM random stuttering. That BIOS number applies to the named ASUS model; other boards have their own releases. See the ASUS A320M-A/FPT BIOS history.
Should you switch to a discrete TPM?
A discrete TPM (dTPM) is a conditional workaround, not AMD’s primary documented fix and not a required purchase. Consider it only if the exact motherboard or system supports a compatible module and you still need TPM functionality. Confirm the board’s header, pinout, firmware support, and vendor compatibility with its manufacturer; a generic TPM module is not guaranteed to work.
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Changing TPM devices or state can affect BitLocker and other TPM-backed features. AMD advises disabling TPM-backed encryption and/or backing up vital system data before moving from fTPM to dTPM. ASUS also tells users to back up the BitLocker recovery key before its listed fTPM update. Do not casually disable TPM: if the computer is managed by an organization, or you rely on BitLocker or Windows Hello, check with your IT administrator or manufacturer first.
Do not confuse stuttering with TPM attestation error 0x80070490
AMD documents TPM attestation error 0x80070490 as a separate issue, not as another name for the random-stuttering problem. AMD says motherboard firmware updates supplied to manufacturers in 2022 resolved the attestation issue, although some manufacturers did not redistribute those updates. Its separate TPM attestation FAQ recommends running Get-TPM in PowerShell to inspect TPM details. In AMD’s version table, fTPM 3.*.0.* is the affected pattern, while 3.*.2.* and 6.*.*.* are shown as OK.
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What AMD’s 2026 TPM security bulletin means
AMD’s current TPM Reference Code Errata security bulletin lists firmware mitigations released to OEMs for affected platform families in 2026 and directs users to their system or motherboard manufacturer for model-specific BIOS information. This is a distinct firmware security update matter; the bulletin does not establish that the historical fTPM stuttering issue has returned.
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