One of the reasons why your laptop may be slowing down is because Windows is making multiple attempts to read data from a damaged area on the hard disk drive, as indicated by the DISK READ ERROR messages. This is a serious problem and needs to be investigated ASAP.
The drive is probably on its last legs and could die at any moment, taking all your valuable data with it, if you don't have any recent backups.
On a laptop of this age (circa 2009 running Windows XP or 7?) you may find the hard disk is hidden under a small plastic panel, secured by a couple of screws. This makes disk replacement relatively easy.
Replacing the sick drive and reinstalling Windows, plus programs and all your personal files, is best left to someone technically inclined. It would probably take me 4 to 6 hours - longer if unexpected problems arise.
If the drive is not too badly corrupted, it might be possible to clone it to a new drive, using Macrium Reflect Free. However, if the old drive is too badly corrupted, it will be necessary to start from scratch and perform a fresh install of Windows on the new drive.
Microsoft has stopped supporting Windows XP, Windows 7 and Windows 8/8.1 with security patches. As a result, none of these operating systems are considered "safe" for connecting to the Internet. Instead you should be using Windows 10 or 11.
If it was my laptop, and you only have 2GB RAM, I'd try installing Windows 10 Home, 32-bit Edition. If you have at least 4GB RAM and a suitable processor, I might try a 64-bit version of Windows 10. There is no guarantee either of these options would work on a machine of this vintage.
Unfortunately, you can no longer buy genuine Windows 10 licences from reputable sources, but you might find a genuine Windows 10 Home Edition DVD and license for sale on eBay.
Alternatively you could buy from a dodgy dealer, illegally selling VL or Education keys to unlock Windows 10 for only $10, but these do not constitute a genuine Microsoft license to use Windows 10. See below.
https://www.zdnet.com/article/is-your-windows-license-legal-should-you-even-care/
You bought a Windows product key from a random seller on the Internet. Even legitimate websites get fooled by shady resellers who advertise Windows 10 or Windows 11 Pro at a price that's too good to be true. Invariably, they're reselling Windows product keys that are part of an enterprise license or a Microsoft subscription. After they've collected enough cash, they disappear. Microsoft could block or ban those diverted product keys, but they might not notice. Do you feel lucky?
There's no point trying to install Windows 11. Your laptop is far too old.
If you have your original Windows XP or Windows 7 DVD that came with the laptop, you could reinstall the old operating system on a new drive, but I'd caution against connecting to the internet, to guard against virus attacks.
CAUTION
Copy any important files on to a USB memory stick or an external USB drive immediately, before the laptop stops working.
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