If you worry about your "favorites" getting lost you can "export" them. That way it's used and cane retrieved and in "imported" should they have been hosed.
While windoze can can do many things to include multi-tasking, you can reach a practical limit. It wouldn't hurt to shutdown some task when you don't need it for now and of course, save your work or similar beforehand. Also, each task can burden the system they don't do this on an equal basis, one or the other maybe more system resource intensive again refers to all the PC has to do. Just because a PC freezes or hangs may actually recover if given time(don't do anything more) as it serves all requests. If it becomes too much you then see the result.
As for internet connection that too can vary. Depending on your type of service and connection it *WILL* go up/down as it becomes burdened. It also can vary during the time of the day of "peak" usage from all users. As for Hotmail, etc, being swapped over that along with all the users and rather large task this all has to be accomplished while online, can be yet another item that provider has to deal with, just another wrench in the works.
Since, you mentioned you PC is an older model, well that too reaches a practical limit. Sooner or later it all comes to a head. Among all the things you get to do is do simple hous cleaning, like disk defrag, basic registry cleaning, reduce task(bkgrd. running), turn-OFF gritz features like video enhancements(Aero, mouse actions), etc., and then there how much ram you have(increase it). Look into of this, google for details if you need to.
>>>1) Will I lose my Favourites if I delete > History, Cookies, and Temporary Internet Files?
2) Should doing this clean up will help the following question 3) , or is it not related?
>>> 3) I have Rogers Extreme Speed internet, but it is not working as fast as it should on my computer all of the time. How do I tell if it is an issue with my computer, OR with the internet service, OR with the web site that I'm on at any given time?
Like right now for instance, typing this post on your site,the computer is keeping up with my typing. BUT usually, for instance, in the "new" annoying "Microsoft Outlook take-over-version" of Hotmail, it is just too frustrating to even work in, so I often type out my emails first in Word documents and then copy it into my email message to send.
Sometimes when I have more than one or two sites open at once, and am working on a Word doc at the same time, I can hear my computer audibly "working" -- (not chugging or churning) In fact, once or twice, my computer froze and I had to cold boot it to close!!
My computer is old but has been upgraded in many aspects over the years.. In any case, before internet installation, I contacted a Rogers Tech and checked it out. He got info from me re my computer, and confirmed that my statistics were pretty much as good as his eg, same OS, same memory capacity, RAM, Speed etc.. or whatever it is that is pertinent in regards to internet function and speed. So I'm expecting that the speed should indeed be "Extreme".
4) Also, sometimes when I have more than one or two sites open at once and am working on a Word document at the same time, I hear my computer box audibly "working" (nothing bad like churning or chugging).
In fact, once or twice, my computer froze and once I had to cold boot it to close!! >> why would that happen, and what should I do to guard against it?
I am not terribly experienced. Can someone kindly offer any support re the above? Thanks, Gale.