Alert! TPM device not detected.

Hi Ali-Nawaz-151:

I'm not an expert when it comes to troubleshooting TPM problems, but you might find a solution in daimkhanna's August 2021 thread Latitude 7480, Alert TPM Device is Not Detected.

Information about troubleshooting TPM problems can also be found in the Dell YouTube video TPM 2.0 Configuration (Official Dell Tech Support) as well as the Dell support article How to Troubleshoot and Resolve Common Issues with Trusted Platform Module (TPM) and BitLocker.
 
If that doesn't help please let us know your Dell Computer model, Windows operating system, and current BIOS version. To find your BIOS version open a Run dialog box (Windows key + R), enter msinfo32 to view your System Information, and look for the "BIOS Version/Date" field.

To find the current status of your Trusted Platform Module (TPM) open a Run dialog box and enter tpm.msc. From my Inspiron 5584, which shows my TPM 2.0 is "Ready for use". Let us know if you see "Compatible TPM cannot be found" or some other status message.

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64-bit Win 10 Pro v22H2 build 19045.2846 * Firefox v112.0.2 * Microsoft Defender v4.18.2304.8-1.1.20300.3 * Malwarebytes Premium v4.5.27.262-1.0.1991 * Macrium Reflect Free v8.0.7279 * Dell Update for Windows Universal v4.8.0 * My Dell v2.2.4 * Dell Inspiron 5583/5584 BIOS v1.22.1
Dell Inspiron 15 5584, Intel i5-8265U CPU, 8 GB RAM, 256 GB Toshiba KBG40ZNS256G NVMe SSD, Intel UHD Graphics 620