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Windows 10 unexplained os size fluctuations
One day, A while back, I got a desktop notification that my os partition was was running out of room.
This was totally unexpected. Previous to this, my 40 gb partition had about 15gb free, and suddenly I only had 200mb of free space available.
It was not a result of a recent windows update.
All my data is on a separate partition, and I make it a practice to only use portable programs whenever possible, situated on the data partition. I have a standard set of programs installed on the OS partition which rarely varies except for updates, and certainly nothing that word cause a sudden occupancy of 15g.
I use Macrium, so it is a simple task to go back to a time when the OS size is normal. When this first happened, I restored a backup image, and did my windows updates, after which things seemed to be back to normal.
But again, a few days ago, it happened again. I cant say exactly when, because I dont regularly check the OS size, but I did check it after the last windows update, and it looked normal, and no major changes have been made since.
I again did an image restore and the windows updates, and closely kept a log of the OS size. It was initially 11.1gb of free space.
I also noticed that rebooting the computer would result in size fluctuations. But maybe this is normal?
I then did a disk cleanup which found a whopping 10.9gb of windows update files (which were not there before the image restore), which I deleted, but it only got me back to 12.6gb free.
A few more reboots, and I now had 16gb free. It has now settled in at 15.5gb free.
The size of my OS now is 24.4gb...about what it should be. Because the image I restored was a few months old, I still have to tweak a number of things, but the major space eaters are already in place and up to date.
I'm gonna watch it closely. It's been 2 days now.
I'd like to know if this has happened to you.
thanks