But Win 10 is different, I don't have an installation CD, so I don't have that last resort.
Get a copy of EaseUS ToDo Backup
There is a Free version or a Home version. I have the Home version which has a scheduler. My system is backed up at 21:00 everyday. I run a lean machine backing up only 37.8GB at the moment. I go from internal SSD to external SSD holding five days worth of backups. Last night the backup started at 21:00:10 and finished at 21:04:08. I have seen Win 10 go completely 'pear shaped' three times and have gotten to the previous evening's desktop in about 13 minutes. All I do is shutdown, insert a flash drive, power on and chose a backup. The C: drive is wiped clean and the backup written. A friend of mine has also seen as many Win 10 go down the tube. He has very much larger backups than I do and his backups are on an external 1TB HDD; which are as cheap as chips nowadays.
I must admit that the first time I had to restore a backup I was a bit nervous. It was an absolute doddle. Win 10 can 'fall over' anytime it likes for all I care.
A few weeks ago some folks who participate in the Win 10 Insider's scheme could not start Windows after an update and were fuming. How anyone can participate in that without a backup system is beyond me. Everyone of them could have been back at a working desktop in no time at all.
If you can afford it go for the ToDo Backup Home version. It has been the best buy that ever I made and my friend has said as much.
Added: I have just upgraded my copy of BleachBit to version 2. The opening dialog asked if I wanted to accept the agreement or not; which I did. It is freeware but donations can be made so it is 'Donation Ware'. JK-IDE is also 'donation ware'. After three months, or so, I made a donation - I was using it everyday <smile>. There is no nag screen if one is not made. I very much doubt that Juergen is driving around in a Ferrari on the strength of donations.