My Windows Vista PC works perfectly and I have Kaspersky Internet Security. I have been told that I need a new PC because I could get a virus now, as Microsoft no longer supports Vista. A new PC that replaces the one I have costs about $ 1,200. And it's a pity when I'm not having trouble, but I'm worried it might be hacked. ksallatt
I thought that I would write about Windows Vista that Microsoft stopped supporting on April 12th. However, the questions continue, and this week, other three have made me return to the frog.
I also agree that it's good to keep the kitten running, even though hard drives tend to fail as they grow older and old PCs are not as effective as modern machines. (They use more electricity, but no more than a filament lamp.) No matter how you do not buy a new machine, you can upgrade from Vista to Windows 7 or 10 or even Linux.
Vista works well
If your PC is running Vista well, it should also run Windows 7 or better. To check compatibility, download Microsoft's Windows 7 Upgrade Advisor . If the result is positive, buy a Windows 7 upgrade or a full copy of Windows 7 – they are the same. There are many sources for cheap copies of Windows 7, but as always, be aware of it.
Overall, I think it's best to upgrade to Windows 10 which is significantly safer than Windows 7. Microsoft does not support upgrades from Vista (launched in January 2007) to Windows 10 (July 2015)). The distance is too wide. Therefore, there is no upgrade advisor to test it. But if your pc is running Windows 7, it will probably run Windows 10.
Microsoft supports an upgrade from Windows 7 to Windows 10 so you can always try it without buying a copy of Windows 10. If that does not work well, you can easily roll it back to Windows 7 as long as you shop For 30 days. Then,  Windows 10 removes its backup of the old operating system to save space.
Regular readers can remember that I recommended moving to Windows 7 as quickly as possible (especially from Windows XP) and keep it as long as possible. But after two years of Windows 10, I think it's much better.
If you hold Windows 7, remember that support ends January 14, 2020. It will give you two and a half years after which you may want to buy a new PC.
If your PC can not run Windows 7 or 10, you can always try Linux. I recommend Linux Mint . This will not run your existing Windows programs, and you will have to learn many new things. The transition becomes easier if you can do most things in a web browser and if you do not need any Adobe, Microsoft or Apple software, including iTunes. There are replacements, but they involve some victims and even more learning. It depends on how much you appreciate your time.
Jos is in the same boat as ksallatt. His HP has a 2.4GHz Intel Q6600 processor and 2GB of memory. Q6600 has a PassMark benchmark score of 2971 so this is a mid range PC that could run Windows 10 well, but I highly recommend upgrading the memory. Use Crucial's System Scanner to check the upgrade options, but I would dump 2GB and install 8GB.
In fact, given the current state of Chrome, Google must provide free 8GB upgrades to anyone using it.