I have spent all day doing this upgrade, and I'm sure I still have some bad surprises coming. If you're going to do it (and the price is reasonable, only $40 if you download the software), here are some points.
If you currently have Windows 7, why would you upgrade? But if you do, everything will migrate over. Programs, settings, personal files, everything.
If you currently have Vista, you will lose all of your current programs. This is because the upgrade completely clears out your C drive. It will only keep your current settings and personal files (documents, for example, if they're in the Documents folder).
Move everything you want to keep off of C, as far as programs are concerned. Find out how to save your bookmarks if you're using anything but IE. I thought I had lost my entire bookmarks file for Firefox, but I managed to find them after a good deal of looking and careful experimentation.
Save anything like passwords and logins for any web sites you might not have handy.
And set aside at least a day to get yourself up and running.
If you have a restore segment on your hard drive, they say it's possible to revert to your previous OS. Don't bet on it. One thing you sign with the upgrade is that you no longer have any right to use the previous OS, since the Windows 8 is upgrading it.
If you currently have Windows 7, why would you upgrade? But if you do, everything will migrate over. Programs, settings, personal files, everything.
If you currently have Vista, you will lose all of your current programs. This is because the upgrade completely clears out your C drive. It will only keep your current settings and personal files (documents, for example, if they're in the Documents folder).
Move everything you want to keep off of C, as far as programs are concerned. Find out how to save your bookmarks if you're using anything but IE. I thought I had lost my entire bookmarks file for Firefox, but I managed to find them after a good deal of looking and careful experimentation.
Save anything like passwords and logins for any web sites you might not have handy.
And set aside at least a day to get yourself up and running.
If you have a restore segment on your hard drive, they say it's possible to revert to your previous OS. Don't bet on it. One thing you sign with the upgrade is that you no longer have any right to use the previous OS, since the Windows 8 is upgrading it.