Right. Well, sometimes both Hotmail and Yahoo Mail (in my experience with both of them for the last 10+ years or so) have a brief server outage sort of problem (which is in such cases at their end.) The thing to do to deal with that is, to just try back later.
That is, about a couple of hours later. Once it has been longer than that, then you have to look into some options, where Hotmail is concerned:
1. Maybe you do have a genuine password XXXXX username problem. The username could have been canceled / erased for some reason - to confirm/deny this, try sending a test email from your other email address to your hotmail address.
If that email does not provoke a 'Bounce' message back (usually from the address postmaster @ hotmail.com ) within 2 hours, then your account, with Hotmail, for that username still exists and functions (as far as receiving email goes.) (If you get a bounce message back, then for whatever reason your account has been suspended or closed... in which case, email Hotmail's help address to try to find out why / get it reversed.)
As for a genuine password XXXXX try the password XXXXX option for hotmail - click on the link just below the password XXXXX box for hotmail, that says in blue type, "Forgot your password?" and follow the instructions... but only if you have verified that your account with Hotmail still exists/functions, first.
2. If - I say If - your password XXXXX mechanism doesn't work, then try to
- A. log in from some other computer, other than the one(s) you usually use. Just to make quite sure it isn't a local problem to your computer - if it is, you could have spyware or adware or a keystroke logger, in which case you should scan that computer quite thoroughly with both antivirus and antispyware/antiadware scanners... for the latter I recommend the best, XXXXX XXXXX fewest drawbacks, Spybot Search And Destroy 1.6[.2] from www.safer-networking.net
- B. contact Hotmail, humbly, explaining clearly up front what account you are asking about, who you are, and some basic information about the problem, and asking if it can be resolved, offering to prove your identity as needed. Don't expect a quick reply, but this can often work out, within a week or less' time.
If this answers your question, and helps with the problem, then click once on Accept for this Answer (only then will I be paid, by diversion of my share from the funds you have already deposited with JustAnswer.com. Thanks.)