Shop for operating systems

• CNET Editor rating:
  4.0 stars Excellent

  Overall score: 8.0 (4.0 stars)
• Average user rating: 2.5 stars out of 194 reviews

The Bottom Line: Microsoft makes an aggressive, forward-thinking, and bold statement for the future of PCs with Windows 8, and vast security and speed improvements more than justify the $40 upgrade price. Read review

Specs: Operating systems, Windows

• CNET Editor rating:
  4.5 stars Spectacular

  Overall score: 9.0 (4.5 stars)
• Average user rating: 3.5 stars out of 336 reviews

The Bottom Line: Windows 7 is more than what Vista should have been, it's where Microsoft needed to go. How much damage Vista did and whether Windows 7 is enough for people to finally abandon Windows XP are questions that nobody has the answers to right now. Read review

Specs: PC, Software suite

• CNET Editor rating:
  4.5 stars Spectacular

  Overall score: 9.0 (4.5 stars)
• Average user rating: 3.0 stars out of 89 reviews

The Bottom Line: Windows 7 is more than what Vista should have been, it's where Microsoft needed to go. How much damage Vista did and whether Windows 7 is enough for people to finally abandon Windows XP are questions that nobody has the answers to right now. Read review

Specs: PC, Software suite

• CNET Editor rating:
  3.5 stars Very good

  Overall score: 7.8 (3.5 stars)
• Average user rating: 2.0 stars out of 515 reviews

The Bottom Line: Windows Vista is essentially warmed-over Windows XP. If you're currently happy with Windows XP SP2, we see no compelling reason to upgrade. On the other hand, if you need a new computer right now, Windows Vista is stable enough for everyday use. Read review

Specs: PC

• CNET Editor rating:
  4.5 stars Spectacular

  Overall score: 9.0 (4.5 stars)
• Average user rating: 3.5 stars out of 49 reviews

The Bottom Line: Windows 7 is more than what Vista should have been, it's where Microsoft needed to go. How much damage Vista did and whether Windows 7 is enough for people to finally abandon Windows XP are questions that nobody has the answers to right now. Read review

Specs: Software suite, PC

• CNET Editor rating:
  3.5 stars Very good

  Overall score: 7.4 (3.5 stars)
• Average user rating: 2.5 stars out of 379 reviews

The Bottom Line: Windows Vista Home Premium is essentially warmed-over Windows XP Home Edition. If you're currently happy with Windows XP SP2, we see no compelling reason to upgrade. On the other hand, if you need a new computer right now, Windows Vista Home Premium is stable enough for everyday use. Read review

Specs: PC

• CNET Editor rating:
  3.5 stars Very good

  Overall score: 7.4 (3.5 stars)
• Average user rating: 2.0 stars out of 48 reviews

The Bottom Line: Windows Vista Business is essentially warmed-over Windows XP. If you're currently happy with Windows XP SP2, we see no compelling reason to upgrade. On the other hand, if you need a new computer right now, Windows Vista is stable enough for everyday use. Read review

Specs: PC

• CNET Editor rating:
  4.0 stars Excellent

  Overall score: 8.0 (4.0 stars)
• Average user rating: 3.0 stars out of 201 reviews

The Bottom Line: Windows Professional boasts serious corporate administration tools--it's a trustworthy upgrade from Windows 2000. Read review

Specs: PC

• CNET Editor rating:
  4.0 stars Excellent

  Overall score: 8.2 (4.0 stars)
• Average user rating: 3.5 stars out of 112 reviews

The Bottom Line: Intel Mac users will like Snow Leopard's smartly designed interface enhancements, and its Exchange support is a must-have (especially with Outlook for Mac on the way). With a ton of technological improvements, Snow Leopard is worth the $29 upgrade fee. Read review

Specs: Operating systems, Mac

• CNET Editor rating:
  0.0 stars

  Overall score: 0.0 (0.0 stars)
• Average user rating: 4.0 stars out of 24 reviews

• CNET Editor rating:
  3.5 stars Very good

  Overall score: 7.0 (3.5 stars)
• Average user rating: 1.5 stars out of 84 reviews

The Bottom Line: Windows Vista Home Basic is essentially warmed-over Windows XP, Windows XP SP3. If you're currently happy with Windows XP SP2, we see no compelling reason to upgrade. On the other hand, if you need a new computer right now, Windows Vista is stable enough for everyday use. Read review

Specs: PC

• CNET Editor rating:
  4.0 stars Excellent

  Overall score: 8.0 (4.0 stars)
• Average user rating: 2.5 stars out of 2432 reviews

The Bottom Line: XP is a worthwhile upgrade from 95/98 or Windows 2000. Unless you need corporate administration tools, XP Home Edition should suffice for most--even for small businesses. Read review

Specs: PC

• CNET Editor rating:
  0.0 stars

  Overall score: 0.0 (0.0 stars)
• Average user rating: 5.0 stars out of 1 review

Specs: PC

• CNET Editor rating:
  0.0 stars

  Overall score: 0.0 (0.0 stars)
• Average user rating: 0 stars No reviews, write one!

Specs: PC

• CNET Editor rating:
  4.0 stars Excellent

  Overall score: 8.0 (4.0 stars)
• Average user rating: 3.5 stars out of 183 reviews

The Bottom Line: The grace of Leopard's interface enhancements makes productivity more pleasurable with a Mac, as more than 300 functional and fun features top off this update. Read review

Specs: Mac

• CNET Editor rating:
  3.5 stars Very good

  Overall score: 7.8 (3.5 stars)
• Average user rating: 5.0 stars out of 1 review

The Bottom Line: For small businesses that need a business in a box and want to stick with Microsoft technology, SBS 2003 is the only game in town. Read review

Specs: PC

• CNET Editor rating:
  4.0 stars Excellent

  Overall score: 8.0 (4.0 stars)
• Average user rating: 3.5 stars out of 90 reviews

The Bottom Line: Windows 2000 isn't for the gamer or the casual surfer, but if you have a yen for speed, stability, and some serious server tools, this business-class OS will do you right. Read review

Specs: PC

• CNET Editor rating:
  0.0 stars

  Overall score: 0.0 (0.0 stars)
• Average user rating: 0 stars No reviews, write one!

Specs: PC

• CNET Editor rating:
  0.0 stars

  Overall score: 0.0 (0.0 stars)
• Average user rating: 3.5 stars out of 13 reviews

Specs: PC

• CNET Editor rating:
  0.0 stars

  Overall score: 0.0 (0.0 stars)
• Average user rating: 0 stars No reviews, write one!

Specs: PC

• CNET Editor rating:
  0.0 stars

  Overall score: 0.0 (0.0 stars)
• Average user rating: 0 stars No reviews, write one!

Specs: PC

• CNET Editor rating:
  0.0 stars

  Overall score: 0.0 (0.0 stars)
• Average user rating: 1.5 stars out of 1 review

Specs: PC

• CNET Editor rating:
  0.0 stars

  Overall score: 0.0 (0.0 stars)
• Average user rating: 0 stars No reviews, write one!

Specs: PC

• CNET Editor rating:
  0.0 stars

  Overall score: 0.0 (0.0 stars)
• Average user rating: 0 stars No reviews, write one!

Specs: PC

• CNET Editor rating:
  3.0 stars Good

  Overall score: 6.0 (3.0 stars)
• Average user rating: 3.5 stars out of 5 reviews

The Bottom Line: We recommend Small Business Server for companies with more than 50 employees, but you'll have to purchase additional server licenses to do so. Smaller companies should consider rival server suites and outsourcing and open source solutions. Read review

Specs: Operating Systems, PC