Can you delete or rename storage/.kodi/userdata/profiles.xml?
If you look at the last couple of pages of the radio addon's thread on the kodi website you'll see it's not working properly at the moment.
Are the 3000 and 18000 coming from the same source?
If they're not then that comparison is meaningless.
A debug log would tell you why it's taking so long - but the answer would still be 'too many channels'.
If you're really exercised by this then write something to download the .m3u regularly, pull out the channels you want, make a small .m3u and point your addon at it. You could do that with a service addon, but it would be a lot of effort to go to.
An easier option would be to leave your box switched on (as it uses next-to-no power) and refresh pvr.iptvsimple eg at 5AM every day.
More channels = more loading time
18000 channels = loooooooooooooooooooong loading time
Use a smaller .m3u, or a different viewer, or live with it.
It's been like that since forever. And it makes even more sense with mysql, 'cos you can have kodi running different versions / different databases through the same mysql install - and inevitably will have at some point while updating.
As I understand it, most banned addons are banned because they infringe copyright.
Most banned repos are banned because they contain banned addons.
Installing a 'legit' (non-infringing) addon that's found in a banned repo should be fine, as long as you don't install the repo.
At least that's how it used to work on the kodi forum.
It's a long time since I've done a standard install on a pc, but I do remember it being pretty hard to do accidentally - there are plenty of prompts. You can always install to another usb stick / drive, which then gives you a 'safe' stick to plug in.
Edit: or just do as vpeter suggests - I'd forgotten the install drive is visible in windows.
Have you tried win32diskimager with a new image? It should work with all images.
Go to your videos section
Navigate to your movies folder
Bring up the context menu and select 'change content'
Change content to 'none'
You'll be asked whether you want to remove all info for that source - choose yes.
Let kodi do its housekeeping, then set the content back to 'movies' and choose the right scraper.
The exact path may be skin dependent, but for me it's:
System > Media > General > Show hidden files and directories
You need to be in advanced or expert mode to see that option.
It's still the same answer for 8.1
-turn off fast startup (it's on by default)
-try in LE
Assuming it's windows 10 I would:
- run chkdsk (I assume you've done that?)
- turn off fast restart
- power down the pc
- unplug the drive
All the above might not be necessary, but none of it is time-consuming.
If it were me I'd invest a few quid / dollars / euros in a usb hdd docking station; that way you can hotplug the drive and use safe-eject in windows (that may be possible anyway from sata, but if it were me I'd prefer not to be poking about inside a pc while it's running).
'The message contains censored words: p0unds'
Eject from windows or libreelec?
Try the 'run' option (from your original thumb drive) as in post #2.
Not too sure why you are booting with one thumb drive to install on another.
What you should do is boot with the thumb drive and select "run" this will install LE on the thumb drive. (Yes I know it's not obvious)
Because I wasn't aware of the 'run' option when he posted on the kodi forum.
Having said that using 'install' to another usb stick should work. I've just tried it on my laptop and it works perfectly, just as it always used to.