I run CCleaner Free Portable from a removable USB stick a few times a month. I launched CCleaner v5.75.8269 today at ~ 9:43 AM and was prompted to download the latest v5.76.8269 (rel. 13-Jan-2021). After the update finished I noticed that I now have a new file called CCUpdate.exe on my USB stick...
... and there appears to be a new task called CCleaner Update in Task Scheduler that is scheduled to run at least three times a day (once at every boot-up, plus twice a day at 9:43 AM and 9:43 PM) to look for an available update.
Are the CCUpdate.exe file and CCleaner Update task in Task Scheduler part of the the Emergency Updater introduced in CCleaner v5.36 (see the Oct 2017 ghacks.net article CCleaner 5.36 Emergency Updater) for installed versions of CCleaner (i.e., the "standard" and Slim builds)? This Emergency Updater was never included in my earlier versions of CCleaner Portable.
I would prefer to have this automatic update check either completely disabled or configure CCleaner Portable so that update checks only runs when I launch CCleaner, and don't want this background update check running multiple times a day (especially when I don't use an installed version of CCleaner and my USB stick is rarely plugged in). Going forward, do I have to delete the CCUpdate.exe file from my USB stick and delete the CCleaner Update task in Task Scheduler every time I update to a newer version of CCleaner Portable and then run a check for updates manually, or is there a simpler solution?
Here are my current CCleaner settings at Options | Updates. The option to "Keep CCleaner updated automatically" is always disabled, and enabling / disabling the option to "Send notifications when there is a new version of CCleaner" doesn't seem to have any affect on the CCleaner Update task in Task Scheduler.
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64-bit Win 10 Pro v1909 build 18363.1256 * Firefox v84.0.2 * Windows Defender v4.18.2011.6 * Malwarebytes Free v4.3.0-1.0.1130 * CCleaner Free Portable v5.76.8269
Dell Inspiron 15 5584, Intel i5-8265U CPU, 8 GB RAM, Toshiba 256 GB NVMe SSD, Intel UHD Graphics 620</span>