Recently I have noticed that CCleaner takes too long to Launch the " General Users Interface " even though it starts and runs on Windows 10 startup fine .
So I searched the File Location and found a Folder called " BackupStorage " ( Program Files\CCleaner\Data\BackupStorage )
This folder holds Compressed data like Realtek Audio or NVIDIA Drivers .
I had 3 old compressed version of NVIDIA Drivers . Around 1gb
I removed them .
Now CCleaners GUI pops up right away .
Hope this helps CCleaner Team to make an Update to fix this bug .
@SelflessWon: Thanks for this - this sort of detail is extremely valuable.
The CCleaner\Data\BackupStorage folder stores the backups of old drivers that you have updated to enable rollback, eg:
1GB for 3 files seems rather high - which all other factors aside might point to something afoot with the driver files provided by NVIDIA. No, I just checked and NVIDIA's distributables really are that big!
When CCleaner loads, it needs to know the most recent state of what has been updated/still needs to be updated/is still pending a reboot/etc, but shouldn't need to actually load up the files in that directory unless you're actually doing a rollback - in theory. My CCleaner is cheerfully starting up in just a couple of seconds on a heavily loaded system, but then again I don't have mammoth NVIDIA backups in my directory.
This seems like a promising lead and the Dev/QA team will be taking a look at replicating the scenario you describe. In the meantime, can I ask if you recall the size of your CCleaner\Data\DUstate.dat file at the time? Should have been < 1Mb?
ok. Found the "backupstorage" and yes, there are over 15 Realtek and Nvidia files there. I transferred all of them to a desktop folder, opened Ccleaner and it did so immediately. So I put the files back in the backupstorage, opened Ccleaner and it again opened immediately. So no difference with or without the files but Ccleaner now opens as fast as normal. Got me baffled now. Thanks for the help!
Thanks to the customers who were able to follow up with additional details for us, we were able to isolate the issue and develop a fix for the users impacted by the slow startup time, which should be released in CCleaner 6.01 shortly.
Big thanks to @SelflessWon who got us pointed in the right direction with the NVIDIA drivers. As a token of our appreciation, we have added 2 years to your CCleaner Professional Plus subscription :-)