Preparing for Insider Preview Builds of Windows 11 - ***UPDATED 6/28***

cause you need to activate the TPM , you can do it in your BIOS

Do you really think the problem is hardware compatibility? not even this whole issue was simply made to force the purchase of new hardware windows 10 itself runs very well old hardware now this new one with a few extra frills are demanding computers this year of launch forcing the sale of notebook new computers are using this ridiculous excuse to have TPM 2.0 and UEFI active? just now? windows 10 was optional. Many people who want to test have more than one system on their computers look at all these comments. Always have a robotic response of moderation.

It would be extremely helpful if the Win11 compatibility tool (PC Health Check) actually told you which requirements your PC doesn't meet. For most people, it's just some silly setting that wasn't enabled in BIOS/UEFI.

Is Microsoft intentionally being unhelpful in the tool in order to make people think they need a new PC, and therefore drive up PC sales for Microsoft's business partners?

If the tool says your PC is not compatible with Win11 and you know that's total BS, check these issues:

• Do you have an 8th gen Intel CPU or higher? If not, the tool will tell you your PC is incompatible with Win11, even if you meet all the other requirements. BUT, Microsoft said this is a soft requirement: When Win 11 is released you will get a warning during installation ("devices that meet the soft floor will receive a notification that upgrade is not advised"), but you can continue installing Windows 11. I don't know what the minimum CPU is for AMD. The information about the soft floor was previously in this link, but has now been conveniently removed: https://docs.microsoft.com/en-us/windows/compatibility/windows-11/
• To check if TPM (Trusted Platform Module) is enabled, go to START > RUN > type in TPM.MSC and open it. It will tell you if TPM is enabled ("The TPM is ready for use").
• You can enable TPM in BIOS/UEFI. Most Intel/AMD CPUs since at least 2016 have this, but they will name TPM different things in BIOS. My BIOS calls it "Intel Platform Trust Technology". For AMD, look for "AMD fTPM switch", "AMD CPU fTPM" or something similar in BIOS.
• Does your BIOS have UEFI mode enabled? (basically a newer version of BIOS). Practically all PCs in at least the last 5-6 years should have UEFI capability. Check your motherboard manual for any mention of UEFI. Most PCs in the last 6+ years will have an option in the BIOS settings to change from BIOS/legacy to UEFI.
• If your BIOS has UEFI capability but it won't let you enable the UEFI option, then your hard disk was probably formatted as MBR when Win10 was installed. Your disk will need to be converted from MBR to GPT before it's compatible with UEFI. The easiest way to do this is to boot/restart to a command prompt and use the MBR2GPT tool: https://www.windowscentral.com/how-convert-mbr-disk-gpt-move-bios-uefi-windows-10 I did this with one of my PCs and it worked, I could then enable UEFI mode in BIOS.

Note: If you get an error when restarting to a command prompt to use MBR2GPT, you might have to boot from a USB with a Win10 installation (create installation media), and use the command prompt option in the Win10 install program instead. Once you've done MBR2GPT, then just restart to BIOS and change it over to UEFI.
If MBR2GPT doesn't work, the alternative would be to do a clean install of Win10 and format your hard disk as GPT during installation.

• The "Secure Boot" requirement is also an option that can be enabled in BIOS/UEFI. The Win11 tool doesn't seem to check this. I intentionally disabled Secure Boot in my BIOS, and the Win11 tool still said my PC was compatible with Win11.

Well, lets take a look at Windows 7 for a minute. Microsoft put it on extended life support (for corporations) and does not support it anymore.

There are still 'some' Win 7 (and xt) computers still running either off grid or for people who have legacy programs that they have not taken the time to replace.  Many people are moving to Windows 10 because there are replacements for the older programs and Windows 10 does it more efficiently (saves steps).  A voluntary act.

So, it is not likely someone will come to your door to collect or 'bin' your device.  It simply won't be as useful as the newer devices.

Communication speeds are improving as well as response times.  The older a piece of hardware gets it becomes harder for it to be updated and for it to keep up or be compatible.  

Security is yet another issue that is reason to update. Some older hardware will be hard to update due to constraints. You can add new boards and modules on a PC but that is not an option for most laptops (it really pays to go over the specs on those).  

More than likely the reason you might want to upgrade is for a better experience or maybe the hardware will just quit.  Some devices are just not repairable...  

I recognize that some very old hardware may not perform well on newer software versions.

What bothers me, is that two years ago I buy a laptop with above average features, pay a small fortune and it is still better than many computers sold today.

Now, Microsoft comes along and says that my processor does not meet the minimum requirements and worse, says that a current Atom processor is compatible.

In any decent comparison, an Atom of the current generation will never have the performance of an I7 processor, even if it is a 7th generation one.

I am right there with you.  
I purchased a 17" HP laptop in 2011 with a 4 core i7 and at least 8gb memory from Costco.  Later that week I took out the primary mechanical drive and installed an SSD to speed it up and bought the connectors from HP to use the mechanical drive as backup.  That laptop was upgraded from Win 7 to Win 8 and currently dual boots Win 7 and 10.   It runs circles around many of the 2 core i7s and devices that only come with 4gb memory today.  Unfortunately , it wont make it on Windows 11.  At least got 10 years out of my $1000. investment  (very expensive at the time. worth it !)

Go  inside  the  bios  and  make  sure  you  enable  the  security features, my  10 gen  I9  10 core  said  the  same  thing  until  I  enabled  the  security features to  get  windows  to  show  security processor  details  as  active  , once  I  did  that  my  PC  was  eligible for  win  11