i have one Acer aspire brand laptop model 4530...

this 2 weeks there have so many virus in my laptop hardisk.. so i decide to reformat the hard disk...

like always use format cd... after loading file and when its try to search for previous version of the windows...

blue screen occur... i have tried to reformat it 5 times already but still the same error occur

i have tried to remove the virus from my hardisk by changing the hardisk to my pc... scan via updated antivirus...

i have also done chkdsk /f for my laptop hard disk...

after that i put my laptop hardisk back into my laptop.... and try to reformat.... but still the same error occur...

blue screen appear..why?...

help me please...

thank you...

but i wonder why it didnt support Achi mode?