WINDOWS 10 NOT ACTIVING PROBLEM

Hi abhayyadav55:

What is your Dell computer model and what is the version number and OS build number of your Windows 10 OS [open a Run dialog box (Windows+R keys) and enter winver]? 

How old is this computer, and did you purchase it directly from Dell or from a third-party reseller? Has the Dell service warranty for this computer expired yet, and if not have you opened a support request with Dell customer support?

What is the exact wording of your Windows activation status shown at Settings | Update & Security | Activation?. If it says "Windows is not activated" see the troubleshooting suggestions in the MS support article Activate Windows. From my Win 10 v22H2 machine:

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Dell Inspiron 15 5584 * 64-bit Win 10 Pro v22H2 build 19045.5247 * Firefox v133.0.3 * Microsoft Defender v4.18.24090.11-1.1.24090.11 * Malwarebytes Premium v5.2.4.157-1.0.5116 * Macrium Reflect Free v8.0.7783 * Dell Update for Windows Universal v5.4.0 * My Dell v2.2.6.0 * Fusion Service 2.2.14.0