It might not hurt to see if it does work, which you could test on some old computer Last remark : The real test of the backup comes when the system dies.Įnsure that you have a boot CD or USB and take care to test it well. Which is probably why there isn't a big difference between medium and best compression.Ĭonclusion: The size of your backup file is entirely reasonable.įor a better compression you might before backup empty the Recycle BinĪnd maybe the Deleted/Trash folder of your emails (if large). Therefore the compression ratio is worse than that of one big file, It cannot treat the entire disk as one huge file for maximum compression, becauseĬompression times will become much too long.

The backup software compresses the disk by disk-blocks, which are usually 4 KB, Your compression ratio is 3.12, which is not too far from mine. I have recently used both AOMEI Backupper and Acronis True Image and have achieved at maximum compression a compression ratio of about 3.2. But that's if you really want to be sure. If you want more assurance than that, your only recourse is to buy a second hard-drive, restore the backup to that hard-drive and install that hard-drive as the main hard-drive of your computer. Do they all seem to be there? That's a good sign the backup went well. Does it seem to have the same folders and files? Go into various program folders. Explore it and compare it to your actual drive. This'll allow you to mount it as a virtual drive and see all the files inside. (Assuming those documents have been on that same drive)Ĭould it be that you had highly compressible data on that drive? That would be a good explanation of how 25GB got compressed to 8GB. I've been using Reflect regularly for over a year, and I confirm it does save everything and allows you to restore your computer, including all installed programs, settings, tweaks, documents, etc.

Macrium