Acer Aspire One AOD250 netbook won't boot up

For the pass 2 days avast kept showing alerts about several viruses on my computer, I rebooted 2 maybe 3 times and had them all removed except one that avast and I couldn't find, but for the rest of the night my computer was fine. The morning of June 19 when I went to turn on my computer it shows resuming windows xp but the bar never loads, so I turn it off and try changing the startup options but I get this error message. Check cable connection!
PXE-M0F: Exiting Intel PXE ROM
No bootable device -- insert boot disk and press any key
The morning before I started deleting and uninstalling a whole bunch of files and programs. Later that night I tried downloading a 200MB rar file, which should only take about 7mins but it stoped loading at 41% and stayed that way for the next 3 hours! Anytime I press keys it makes a loud buzzing sound. Can it be fixed or is there anyway i can send it to Acer for repairs?
 
Do you have any friends or associates who have tech knowledge? Do you have your recovery and/or Windows disk?
 
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