Best version of windows for older PC

Windows 10 works just fine without a touchscreen.

Just how old is your machine? Alienware has a lot of PCs. Could you give us your model?

Windows 10 works just fine without a touchscreen.

Just how old is your machine? Alienware has a lot of PCs. Could you give us your model?

Windows 10 works just fine without a touchscreen.

Just how old is your machine? Alienware has a lot of PCs. Could you give us your model?

i can't download window 10 why    dell core  13

I have Dell (Alienware) PC with windows 7, telling me all apps are discontinued and it needs and upgrade. I do not have a touchscreen monitor but some have warned me to avoid windows 10 because of that. What would be the best MS version since this monster of a computer is loud, hardy, and a tidbit slow, but undeniably reliable?

Ok its a DELL ( ALIENWARE ).

More information needed on Product Model before suggestion.

What is the MODEL / SERIAL / SERVICE TAG ???

Service Tags @ Product Model Labels are usually found on the Back / Top / Side or Underside of tower cases.

Model should be screen printed on the front bezel somewhere.

If you cant find the Service Tag or Model anywhere download a Computer Information Tool such as SPECCY.

OR : For basic information.

On the keyboard hold the " WIN LOGO KEY " and press " r ".

In Run Box type : msinfo32 and press enter.
Check the Systems Summary as to the Model and other information.

Take a screen snip @ post. 

For a computer that originally ran Windows 7, Windows 8.1 is probably the safest upgrade.

Hardware old enough to be in a computer that originally ran Windows 7 is not likely to have driver support in Windows 10, which means that it may or may not work. Many former Windows 7 users who post here have discovered that their hardware doesn't work properly, or at all. That's not Microsoft's fault.

In addition, the software your computer is currently running will likely need to be updated to work properly with Windows 10. 

For hardware and software, you can find out if it will work properly on Windows 10 by asking the hardware manufacturers and software developers.

Windows 8.1 is the successor to Windows 7, so your hardware and software are more likely to work properly from the get-go.

8.1 is a completely different operating system from XP, Vista and 7.

For a Start there is no Start Menu, etc.

10 is Microsoft's attempt to go back to the old setup.

It depends on the hardware requirements of later operating systems and also whether the computer/laptop manufacturer supports and supplies drivers for the later operating systems as to whether it is possible or feasible to upgrade or not.

Support for 8 ended in Jan, 2016.

Extended Support for 8.1 ends in 2023.

But first check if your computer manufacturer supports and supplies 8.1 drivers for your exact model number:

Also:

"Windows 8.1 system requirements"

http://windows.microsoft.com/en-us/windows-8/system-requirements

Processor. 1 gigahertz (GHz)* or faster with support for PAE, NX, and SSE2