need to upgrade my Processor my current one is Intel(R) Celeron(R) CPU N2840 2.16ghz

[DSUE64]

I need to upgrade processor to get Windows 11. I also need to enable TPM ????

[banhien]

@DSUE64 

No, you can't upgrade CPU/Processor of your machine, it is integrated (soldered) to its system board. Its specs

            https://support.hp.com/au-en/document/c04504147

Your machine is at the bottom end of the series. No other option for you to upgrade for Windows 11. You have to live with it OR buy a new machine.

Regards.

[Paul_Tikkanen]

Hi, @DSUE64 

It is possible to install W11 on your PC as it is, but it takes a little effort.

So, if you want to try out W11, I would make a system image of your current W10 installation prior to updating to W11, so you can easily reinstall W10 in the future.  I used the free Macrium Reflect software to do that, under the Backup at Home section. 

Along with the system image, make sure you create the bootable DVD or USB rescue drive you boot from to access the system image stored on your portable hard drive.

Macrium Software | Reflect Free Edition

First make this registry change...

https://www.hellpc.net/how-to-bypass-tpm-and-cpu-requirements-windows-11-upgrade-unsupported-pc/

Then download the Windows 11 ISO file (3rd option), not the W11 installation assistant.

Download Windows 11 (microsoft.com)

Use Rufus and make a bootable USB installer with the ISO file you downloaded.

There is a new option to create an installer that is supposed to bypass the W11 hardware checks. 

After you make the installer, open the file contents, and double click on the setup application, and see if you can get the in-place upgrade like I was able to.

If for some reason, W11 won't let you do the in-place upgrade, you can clean install W11 with the Rufus-created installation media.

Here is the link to the Rufus download.  You want the version 3.17 portable.

Rufus - Create bootable USB drives the easy way

Here is a screenshot for how you should let Rufus set up the ISO file...

You just have to accept the agreement that comes up during the upgrade process about your PC not meeting the requirements, etc., etc..

My unsupported W11 PC's got all of the W11 updates. 

I have upgraded 8 of them to W11, and they seem to run a little better on W11 than they did on W10.

However, I don't know how long they will continue to get all of the updates, or what will happen when the new build of W11 comes out next year in October.