When it comes to upgrading to Microsoft's latest operating system Windows 7, there's been so much written on the subject, you may well be thinking that you'll breeze through the process. However, there are some tricky nuances and possible snags that continue to confound consumers. We look at just what you may need to consider.

The price you pay

If you took advantage of Microsoft's pre-order programme, you will have paid £49.99 for Windows 7 Home Premium or £99.99 for Windows 7 Professional and you'll be waiting for the disks to arrive in the mail on October 22, when Windows 7 officially ships.

If you missed the pre-order boat, the retail price of Windows 7 Home Premium Edition is £149.99, while the Professional version costs £219.99 and the Ultimate Edition is priced at £229.99.

What about new PC purchases?

Microsoft has an offer dubbed the 'Windows 7 Upgrade Option Programme'. It started on June 26 and will run through the end of January 2010 and basically if you buy a new Vista machine, you qualify for a free copy of Windows 7.

I imagine most buyers will want to have Windows 7 on new PCs after October 22, but if you prefer Vista you at least have the option to upgrade to Windows 7 for free.

The upgrades will be provided after Windows 7 ships on October 22 and will be offered either by DVD or download, depending on the Microsoft partner.

Most PCs running Vista Home Premium, Vista Business and Vista Ultimate qualify for a free Windows 7 upgrade, but all buyers should check with the retailer or PC maker to make sure their new Vista machine qualifies.

The easy way to upgrade

So you've got Windows 7 in hand. Now what? In some cases, upgrading will be as simple a loading the Windows 7 DVD, typing in a code and waiting about 45 minutes.

Such a plug-and-play type installation (called an 'in-place upgrade') is by far the most hassle-free way to get Windows 7 on your PC. You don't even have to back up your data (though you still definitely should).

You will be running Windows 7 and all your applications, programs, settings, and photos and files will be as they were before.

But even with in-place upgrades there's a slight catch. They only apply to those PCs running Vista, with at least 20GB of free disk space - although that should not be a problem for most users given the amount of storage on today's hard drives.

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NEXT PAGE: XP to Windows 7: The hard way

  1. It could be Heaven or Hell
  2. XP to Windows 7: the hard way
  3. The 32bit/64bit question

When it comes to upgrading to Microsoft's latest operating system Windows 7, there's been so much written on the subject, you may well be thinking that you'll breeze through the process. However, there are some tricky nuances and possible snags that continue to confound consumers. We look at just what you may need to consider.

XP to Windows 7: the hard way

Things get complicated with PCs still running Windows XP. In-place upgrades are not an option here. With XP-to-Windows 7 upgrades, you will have to do a 'clean installation', which entails backing up all your data, installing Windows 7 and then restoring all your data and reinstalling your applications. This is about as fun as root canal surgery.

XP-to-Windows 7 upgrades call for clean installs because of incompatible applications and drivers. Also, most of the computers running XP are aged and will lack the power to run Windows 7 to its full potential.

All of this makes life difficult for XP users trying to install Windows 7. Pile on fears of the same incompatibility issues that plagued XP-to-Vista upgrades and you can see how XP users are being gently forced to buy a new computer.

Laptop buying advice

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NEXT PAGE: The 32bit/64bit question

  1. It could be Heaven or Hell
  2. XP to Windows 7: the hard way
  3. The 32bit/64bit question

When it comes to upgrading to Microsoft's latest operating system Windows 7, there's been so much written on the subject, you may well be thinking that you'll breeze through the process. However, there are some tricky nuances and possible snags that continue to confound consumers. We look at just what you may need to consider.

The 32bit/64bit question

Even if you have a fairly new PC running Vista, you may not be getting the best version of Windows 7 when you do an in-place upgrade. Why? You've got a 32bit system.

64bit versions of Windows are becoming all the rage. At its simplest, this refers to how much information a processor can handle at one time. 64bit Windows can run faster than 32bit, allows more applications to run at once and facilitates faster switching between apps.

You should understand, however, that to get the full benefit of a 64bit OS and 64bit compatible hardware, you'll also need 64bit applications - and application developers are still lagging behind Microsoft and Intel on this front. Your favourite and most demanding apps may not have been rewritten to take advantage of 64bit technology yet.

Most PCs sold in the past three years have 64bit compatible hardware and most sold in the past nine months run a 64bit version of Vista. So if you've got one of these, and want to upgrade, just load the 64bit Windows 7 disk (Windows 7 retail packages come with both 32- and 64bit disks) and let your in-place upgrade to 64bit Windows 7 begin.

But if you're like me and your laptop runs a 32bit version of Windows Vista, your only in-place upgrade will be to a 32bit version of Windows 7. To go from 32bit to 64bit, you will have to do a clean install. Additionally, you'll have to add RAM if you have anything less than 4GB, because 64bit demands this much at minimum for good performance.

You could upgrade your Vista machine from 32bit Vista to 64bit Vista first, and then do an in-place upgrade to 64bit Windows 7. But in addition to buying a Windows 64bit Vista disk and buying more RAM, you'd still have to do a clean install for the 32bit Vista to 64bit Vista upgrade.

Is it a disadvantage to run a 32bit version of Windows 7? Heck no. Most users run a 32bit OS very comfortably everyday. With 3GB of RAM, a 32bit OS can easily handle aggressive computer use (unless maybe you're editing the next Spielberg movie on your laptop.)

But if you're a forward-looking power user with the latest hardware who usually has 10 apps going at once, then 64bit will be worth the dreaded clean install.

Laptop buying advice

See all laptop reviews

See also: Is the Windows 7 touch capability useless?

  1. It could be Heaven or Hell
  2. XP to Windows 7: the hard way
  3. The 32bit/64bit question