gianni3ita
Untill last week I could enter with file manager...but now I can't.
I have no idea what you mean by you "can't enter" or they "disappeared". As in if you click on the "Desktop" folder in your home directory in a file manager, it does not open? What happens exactly? Either it is a permissions issue, corrupt file system, or some other issue.
As I have Manjaro-Solus,Linux Mint ,Windows 7 and Androidx86 on the same disk...I'm using a Manjaro grub in MBR mode (not EFI)...and the only 3 package on Solus I don't update are grub2-linux-firmware and linux-current because they change me a grub settings and other Linux don't boot. May I have to update it?
It sounds like you are holding back packages to me. Other operating systems won't boot because one of your other Linux-based operating systems (by the sounds of it, probably Manjaro) is not being booted into by you after a kernel upgrade, which means it has an out-of-date GRUB configuration and is pointing at a kernel that ends up no longer existing after our upgrades. It is also hard to say what you are doing when it comes to your filesystem configuration, if you are trying to share home partitions (which will cause issues), since you haven't provided any details on that.
Need more details on your setup, you to run the troubleshooting guide, having a full upgrade and booting into a modern kernel would be beneficial if not required depending on other dependencies, etc.
Alternatively format and use just Windows and Solus.