Windows 10: How to confirm external hard drive function

This seems an incredibly basic question but I'll ask anyway. I've finally decided to do a system image backup of ~250 Gb to my old external hard drive and confirmed there's sufficient space. It's been running for almost 24 hrs. but the length of the progress bar has barely budged. I've checked the properties of the drive but don't see any evidence of any data downloaded but windows says the hard drive is OK. The drive light is flickering away, the drive feels warm but how can I confirm the thing is doing what Windows says it's doing-"saving the the backup"?
I know this can take many hours but there's no indication the progress bar is changing.

Thanks for your help

You can monitor disk activity in Task Manager. Click on the Performance tab (if you don't see one, click 'more details'). Your external hard drive will be listed there. Click on it and you can see the write speed and '% active' time. If data is being written and the % disk activity is high then it looks like it's still working on it.

24 hours is a very long time to write a system image, whatever you are using to make the image. Are you using the built-in Backup & Restore (Windows 7) 'make a system image' option? If so, did you click 'make a system image' or did you make a backup and include a system image?

Making a backup is not really necessary if all you want is a system image - it backs up all your user data first, then makes the system image (which will also include your user data). The advantage of a backup is that you can restore individual files, the disadvantage is that (especially if you tick C: to be backed up) you're going to end up with most (or all) of your data being written twice to the external drive, once in the backup and again in the system image.

Thanks for responding. Using "make a system image" from Win 7 backup. Task manager shows performance of drive at 2 GHz and 3% utilization. I do normal backup on another hard drive but thought I had to do a system image to do a full restore . My PC is about 10 years old, crashes on occasion and, though no indication of C drive problems, though the PC is on borrowed time.

arnnad said:

Task manager shows performance of drive at 2 GHz and 3% utilization.

Those would be the performance figures for your CPU. Below that is 'Memory', then your 'Disk 0 (C:)' drive. Your external drive should appear as 'Disk 1' just below the C: drive. Click on the small graph of activity for the external drive in the left pane to see its active time and read/write performance.

Thanks for responding. Using "make a system image" from Win 7 backup. Task manager shows performance of drive at 2 GHz and 3% utilization. I do normal backup on another hard drive but thought I had to do a system image to do a full restore . My PC is about 10 years old, crashes on occasion and, though no indication of C drive problems, though the PC is on borrowed time.

Don't know if this is readable. Sorry I don't know how to include a larger attachment. The write speed is very erratic at maximum of 350 Kb/sec. Active time is 100%.

Well, data is certainly being written to your G: drive, so it looks like the system image is progressing. The average response time and write speed look slower than I get, though. Your WD drive's specs are OK, but as it's a 3.5" drive are you using it in a USB enclosure? Is it a USB 1 spec?

Your speeds would suggest you are using a USB 1 connection. I get 460ms response time and 25MB/s write speed making a system image on a drive connected to a USB 2 port. If yours is USB 1, that could explain why the system image is taking so long. It looks like it's working, you'll just have to be patient, I'm afraid.