Why my pc still can't update to windows 11 from windows 10?

You can't update to Windows 11 from Windows 10,Windows 11 mandates features like TPM 2.0, Secure Boot, and specific CPU models. Some older hardware may not meet these requirements, leading to compatibility issues or the need for hardware upgrades. While most apps work fine, some legacy or specialized software may encounter issues post-upgrade. Windows 11, especially shortly after release, might have bugs or stability issues that can affect productivity. Some device drivers may not be fully optimized for Windows 11, potentially causing hardware malfunctions.

The new UI and taskbar layout differ from Windows 10, which may require some adjustment. Some features present in Windows 10 (like certain classic control panel options) have been deprecated or moved, which could affect workflows. On certain hardware, Windows 11 may not perform better than Windows 10, especially if the system is below recommended specs. Windows 11 might use more system resources, potentially affecting performance on older or less powerful machines.

If you decide to proceed when you can't update to Windows 11 from Windows 10, doing a clean install might mitigate some issues but will require reinstalling applications and restoring data. An in-place upgrade, as described, can preserve your apps and files but may carry over some existing quirks or incompatibilities.