I have been running True Image for years under 98 and XP (up through SP-3).
It is easy to use and has saved me several times.
The simplest level is called "True Image Home". Even that probably has more
capabilities than you need, but you only need to learn those you actually
want to use, which would probably be "create image" and "restore image".
Images can be of an entire hard drive, or a single partition, or multiple
partitions. If you only have one big C: drive, then partition is almost the
same as whole drive. File exclusions are possible, but I would recommend
against that, except for files you know are not required (or will be
re-created), such a pagefile.sys and hiberfil.sys.
The newer versions of True Image can save collections of files (less than a
partition), but I would recommend using Windows Explorer for backing up
personal files, or maybe XCOPY from a command prompt. The power of a
program like True Image is its ability to backup the operating system and
program files, while the PC is running that operating system. And, its
power is also to know that a restored image contains 100% of what you need
to run the PC and programs.
Avoid the "snap restore" option, unless you have a single big C: drive. It
restores only the partition(s) on the image, and causes the rest to be
empty. This would be a bad thing, if your image had only C:\, but the PC
had C:\ and D:\. Normal restores are fast enough; you do not need snap
restore as a home user.
Avoid the "secure zone", which makes an image on the same hard drive. Real
security of a backup rests on that backup being somewhere other than on the
same hard drive as the original data, preferably on an external hard drive,
which is unplugged from both the PC and the wall, except when doing backups
or restores.
Restoring selected files is also possible, and that is fine for many
purposes. But, after a PC crash, virus, etc, it would be better to restore
everything, rather than hoping that you restored the right stuff and nothing
more/less.
As for other programs that are similar, Norton GHOST is the classic, but I
rate it inferior to True Image and harder to use. Symantec, it owner, has a
much less friendly/useful support organization than does Acronis. For some
other ideas, check this link:
http://www.majorgeeks.com/downloads3.html
Just be careful when examining a backup program to ask whether it can
restore without windows being operable. Some can not. Avoid those.