I have AMD Athlon(tm) 2800 64 Processor 2800+ 1.81 Ghz 1GB RAM I want to upgrade it to Latest AMD 64.Please let me know what is to be done?

Your machine is very short of power required for win 10, I would like to see at least 8 GB ram, and a faster processor, yours is at the bottom of tests. Perhaps you should look at a new machine with win 10 installed. You cannot upgrade xp to win 10. You will have to purchase a win 10 license, you missed the free upgrade period.

my headphone is not wprking when connected to the pc then what will i do

in my system i need motherboad software

maybe your graphic card's video memory is too low... just buy another one or upgrade it

http://support.amd.com/us/psearch/Pages/psearch.aspx?type=2.1&product=2.1.1&contentType=Tech%20Download%20Processor

That should do it.

it depends on how big the ram and the hd is. the bigger the hd and ram the more expensive it is except for their transfer rates. if your planning on upgrading because of games, you will need atleast 7200 rpm for the hardisk which costs more than a typical one. but for all i know thats the default for a desktop. there are 10,000 rpm also which are more expensive than the bigger hd's. same with the RAM. you can check ebay for the price. but the price depends on the country you are in if your buying it from your place.

instead, upgrade RAM

hello,
there's no sound coming out of my computer anymore.
I've got a acer Aspire M3100 with AMD Athlon tm 64*2 dual core processor 4000+ 2.09 GHz 768MB of RAM

Need to look at the motherboard specs along with the processor "Socket". It will usually be a 754 or 939 depending on what your motherboard says. I wouldn't try too fast and set yourself up for disappointment. I would upgrade the RAM before the processor.