Unable to sync Calendar and Contacts on new Windows 11 PC

Thanks for your reply and have tried the suggestions before. What surprises me is that it says sync does not work with POP accounts and that is what my main email is, and I have been successfully syncing since my first iPhone (iPhone 4). I have Windows 11 on my laptop and also my previous PC and with no problems syncing with those computers. I think the problem lies with it not being open my iCloud email account in Outlook. I never use this email and set it up on my first iPhone many years ago. I enter the email address under new account and when it goes to the password, I enter my current Apple one, but it fails every time. I have even tried using my original password with no success and I think that this must be where the problem lies as I sent a screenshot with my first email with a message on the iCloud tab in Outlook saying Wrong Password. I have checked all the settings on my laptop which does sync and my iCloud email account shows up on my accounts list although it won't let me send emails. One thing I do notice is under Calendar where it says Calendar from iCloud, it is followed by - iCloud in a different font and the same with contacts. The new PC doesn't have these suffixes.

Further to my last message, I have now successfully set up my iCloud email account but still can't sync my Calendar and Contacts. I have signed in and out of iCloud several times but just can't get it to sync. I have checked my account details and my data file is selected as the Outlook.pst that I have always used and in the correct location. It must be something to do with the 'Wrong Password' message on the iCloud tab in Outlook but can't understand that as I have no problems signing into Apple in any other locations. Sync works all my other devices, iPhone, iPad and Windows 11laptop.