DragonLS
Obviously it will be absolutely crucial for your mother to maintain a comprehensive backup system in her business. A system that is designed to backup the entire contents of the drive(s) she will be working with. By entire I mean the total contents of her "source" drive(s), including the OS, registry, configuration settings, all business data, etc.
She can accomplish this with a disk-cloning program. And with the right kind of program she can maintain frequent comprehensive backups of her system in a relatively short period of time.
The program I strongly recommend is the Casper disk-cloning program. I have been using various versions of this program for about 10 years or so. (The current version is Casper 8). During that time I have probably used the program thousands of times cloning scores of hard drives (HDD) and SSDs. My experience has been solely with the various MS OSs primarily with XP, Vista, Windows 7 & 8.
Aside from its effectiveness and ease of use the great advantage of the Casper program in comparison with other disk-cloning & disk-imaging programs is its extraordinary speed in carrying out its disk-cloning operations. Obviously this is a valuable incentive for users to systematically & routinely backup their systems with the Casper program - knowing that the expenditure of time to complete the disk-cloning operation will be relatively slight. Thus, the user is encouraged to perform these disk-cloning operations on a relatively frequent basis since by doing so the expenditure of time in completing the operation will be comparatively short. This last point is crucial. The program works best when it is used with a fairly high degree of frequency - perhaps not less than once a week or even on a daily or two or three times a week basis. When it is used in that manner, the expenditure of time in completing the disk-cloning operation comes close to being trifling. And most importantly the user is secure in the knowledge that he/she has an up-to-date complete backup of his/her system where all data on the cloned disk can be immediately accessed and in the event of source disk failure/corruption the system can be restored within a few moments to its former functional state. It's difficult to think of a better comprehensive backup system.
A quick example to illustrate Casper's disk-cloning speed. One of my PCs SSDs contains total data of about 105 GB of data. Note this is *total* data - including the OS, all programs & applications, all my user-created data - in short, *everything* that's on my "source" SSD. I last used the Casper program to clone the contents of that drive three days ago. Naturally, like most users, I've made changes of various kinds over that four-day period - added, deleted, modified some programs, manipulated this or that configuration, etc., etc. More or less the typical kinds of changes made by most users over a period of time. Earlier today I again cloned the contents of that source SSD to one of my desktop's internal SSDs. It took just about 1 minute. (I should point out that I've been converting nearly all my HDDs to SSDs so disk-cloning speed is considerably faster than when using HDDs. I would estimate that in the example I've given it would have taken me about 2 or 3 minutes to complete the disk-cloning operation using HDDs as the source & destination disks).
BTW, as an aside - I hope your mom can swing $-wise for at least one SSD as her day-to-day source drive installed in her PC. Even better if she install another SSD as the destination drive either installed internally (if possible) in the machine or in a USB external enclosure.
The Casper program is not a freebie - it's $49.99 (and worth every penny!). See http://www.fssdev.com.
If you desire any add'l info please so indicate.
ArtP