Most of the manuals for your PC hardware , or programs you download , usually are in PDF format. Now if you are not an experienced user as me , you might as well go to Adobe and download their shitty PDF reader , which magically updates everyday , but nothing changes in it. Their client is around 50 megabytes , and adds nothing special that other PDF readers or converters wouldn't. I deleted Adobe PDF reader in like 2 days after I installed it , and was looking for a new PDF reader soon. And I found it ... and it's called Foxit PDF Reader. Try it , it's a tiny PDF reader client , FREE!

Website : http://www.foxitsoftware.com/pdf/reader/
Download : http://cdn01.foxitsoftware.com/pub/foxit/reader/desktop/win/4.x/4.3/enu/FoxitReader43_enu_Setup.exe - Latest Version