If you are technically inclined, you could try reseating the CMOS battery (the small coin battery inside the case), as this sometimes resets the TPM controller logic on older boards, but this requires opening the chassis.
The TPM (Trusted Platform Module) provides hardware-based security functions used for BitLocker, Windows Hello, secure boot, and other cryptographic tasks. If a Dell Vostro 5568 reports "TPM device not detected" (or similar), it can prevent security features from working and may indicate firmware, BIOS, or hardware issues. This article explains causes, step-by-step troubleshooting, checks for hardware quality, and recommended next steps.
| Step | Action | Success Rate | | :--- | :--- | :--- | | 1 | BIOS Defaults / PTT Toggle | Low-Medium | | 2 | NVRAM Drain (Power Button Hold) | High (Best for 5568) | | 3 | Reinstall TPM / IMEI Drivers | Medium (If Windows issue) | | 4 | Update BIOS via USB | Medium | | 5 | Hardware Check (Motherboard) | Terminal |
To fix the " Alert! TPM device is not detected " error on your Dell Vostro 5568 Go to product viewer dialog for this item. dell vostro 5568 tpm device not detected extra quality
, follow these troubleshooting steps organized from simple settings checks to deeper hardware resets. 1. Enable TPM or PTT in BIOS
The error often occurs because the Trusted Platform Module (TPM) was accidentally disabled or "lost" after a power event. Access BIOS : Restart your laptop and repeatedly tap the key at the Dell logo. Find Security Settings : Navigate to the Enable TPM/PTT TPM 2.0 Security and ensure is selected. : If "TPM" is missing entirely, look for Intel Platform Trust Technology (PTT) and set it to
. Some Vostro models use PTT instead of a discrete TPM chip. Apply and Exit to reboot. 2. Perform a Hard Power Reset If you are technically inclined, you could try
If none of the above works, the physical TPM module or the motherboard circuit connecting it may have failed.
Scenario A: You use BitLocker or Windows 11 If the TPM is dead hardware-wise, you cannot use BitLocker hardware encryption, and you cannot officially upgrade to Windows 11. You will need to replace the motherboard to fix this physically.
Scenario B: You just want the error message to go away (The Workaround) If you do not use BitLocker and you are running Windows 10 (or don't care about Windows 11 requirements), you can instruct the BIOS to ignore the missing device. | Step | Action | Success Rate |
Many repair shops will tell you the TPM chip is "dead" and you need a new motherboard. For the Vostro 5568, this is almost always false. Because the TPM is firmware-based (Intel PTT), there is no physical chip to fail. The issue is exclusively a corrupted NVRAM variable within the PCH. The "extra quality" solution above rewrites those variables.
Often, the TPM is simply in a "hung" state. The Vostro 5568 BIOS has a built-in reset mechanism.