Pongo el ultimo sistema operativo de microsoft después del desastroso windows vista, este no tiene apenas fallos y funciona bastante bien, en este DVD estan todas las versiones de windows7:
Starter x86
Home Basic x86
Home Basic x64
Home Premium x86
Home Premium x64
Professional x86
Professional x64
Ultimate x86
Ultimate x64
Enterprise x86
Enterprise x64

Para bajaroslo os recomiendo que useis Rdesc ya que sin gestor de descargas se puede hacer eterno.
Esta todo en español y para activarlo hay que usar el link de abajo del todo.
Lo primero son las partes que descomprimiendolas con el winrar se crea un archivo .iso que luego grabarás en un DVD de 4.7GB y luego el activador a parte, recomiendo usar un pendrive o descargarlo posteriormente.
Descargar:
http://www.megaupload.com/?d=0GZW2Q04
http://www.megaupload.com/?d=PU92Y6P0
http://www.megaupload.com/?d=0X4QNRLF
http://www.megaupload.com/?d=YK46O64L
http://www.megaupload.com/?d=6YCHL3KA
http://www.megaupload.com/?d=ZN9GWMFO
http://www.megaupload.com/?d=P1728U33
http://www.megaupload.com/?d=KUMG1G2K
http://www.megaupload.com/?d=3KZ94ZBO
http://www.megaupload.com/?d=VMLXGE1O
http://www.megaupload.com/?d=N5OJN3GM
http://www.megaupload.com/?d=46XA9W0C
http://www.megaupload.com/?d=HWEQS6MC
http://www.megaupload.com/?d=34PWQEOG
http://www.megaupload.com/?d=C59HH04R
http://www.megaupload.com/?d=KJ84CIHR
http://www.megaupload.com/?d=AOIB1OF0
http://www.megaupload.com/?d=4ENDDBJ3
http://www.megaupload.com/?d=PBK4NX1P
http://www.megaupload.com/?d=5L5O5FL8
http://www.megaupload.com/?d=WTERJL9G
http://www.megaupload.com/?d=AKTHIJUR
http://www.megaupload.com/?d=WVRSYLJ1
http://www.megaupload.com/?d=IQ0DB5QF
http://www.megaupload.com/?d=JZS9RA9N
http://www.megaupload.com/?d=O5FILEW6
http://www.megaupload.com/?d=EU12XEEM
http://www.megaupload.com/?d=DOPXG40A
http://www.megaupload.com/?d=95DRMN5S
http://www.megaupload.com/?d=JZFXL7MX
http://www.megaupload.com/?d=21OOXWUQ
http://www.megaupload.com/?d=YOZ1Z7F6
http://www.megaupload.com/?d=UG1ZW17P
http://www.megaupload.com/?d=ZDZEE46U
http://www.megaupload.com/?d=5Y473MNP
http://www.megaupload.com/?d=4DR6GCTZ
http://www.megaupload.com/?d=DUEXSAA8
http://www.megaupload.com/?d=VF3LUAV3
http://www.megaupload.com/?d=95NF6P31
http://www.megaupload.com/?d=NEY03SC0
http://www.megaupload.com/?d=EYEZLHP2
http://www.megaupload.com/?d=OYC663OD
http://www.megaupload.com/?d=UNS6ZDZQ
http://www.megaupload.com/?d=V25QQSK1
http://www.megaupload.com/?d=IT82D0GF
http://www.megaupload.com/?d=4CNNFOTZ
http://www.megaupload.com/?d=FHX2QPDW
http://www.megaupload.com/?d=LPUOX07U
http://www.megaupload.com/?d=3X3Y8L5J
http://www.megaupload.com/?d=BKPFQWRP
http://www.megaupload.com/?d=LDDNCXNM
Activador:
http://www.megaupload.com/?d=W5USAQXO