My old PC is too old for MX Linux. So, I try to replace it with Zorin OS Lite for the dual boot setup. In the MX Linux partition, I install the root "/" of Zorin. Near the end of the installment, I got an error message "Error restoring installed applications" and "installer crashed" (see the screenshots). After restarting the PC, the boot screen looks fine. After selecting Zorin, the screen somewhat looks like MX Linux which the command bar is vertical on the lift side of the screen. But it isn't MX Linux, nor Zorin. On the top left corner, there are two icons: FAQ and Manual. When I click any of them, I get an error message (see the attached screenshots).

I installed it twice with the same errors. When I reinstalled it, I noticed that "/" didn't show up in the Zorin partition.

How to solve the problem?

It looks like you installed one system over the other, which is hardly kosher.

Did you use a separate partition for your new OS?

If you want a dual boot, you need to install the 2nd OS to a separate partition. If your computer is too old to run MX Linux, I doubt Zorin (even the Lite version) will be better than MX.

I use the existing partition for Linux. The problem is likely due to missing a part of the OS. Zorin, unlike most the other distros, requests to have 3 partitions: a root "/", home "/home", and swap partitions. The PC runs out of bootable partitions, total of 4, without a room for the home partition.

The other one is Windows. The Live version of Zorin Lite seems quicker than MX Linux to me.

If you are limited to 4 partitions, you have an MBR/msdos partitioned drive. Windows generally uses multiple partitions for its install. If you have at least one partition available, you can create and Extended partition and logical partitions within it on which to install Zorin. You can then create multiple partitions for /, /home and swap if you have the space. I don't use Zorin but I would expect that you would have an option to install it on only one / partition.

That is quite an interesting idea as I am running into a wall right now for Zorin installation. I, however, don't know how to make an extension nor logical partition. I need to do some online search.

if you use [more or less] any partition manager: they will offer something like creating an extended partition. I don't know Zorin, but I guess it will do that too.
So first you need to create that extended partition (and that will occupy all the available space on your disk) and you will create partitions inside that (like /, home/ swap) - they will be called logical partitions, but probably you will not see the word logical displayed anywhere, because practically these partitions work exactly the same way (as the primary partitions).

Thanks for your explanation. I will take a look into the extended partition subject. My Zorin installation doesn't work so far. So, a partition manager needs to be on 32-bit Windows.

If you can boot the Zorin install USB, do that and open a terminal and run the following command and post the output here:

There is a space after fdisk and that is a lower casee letter L in the command. You can use Disk Management on windows to create either unallocated space or a partition but it would be better to use the Zorin partition manager (maybe GParted?) since you will have to create a filesystem on it and you can't do that in windows.

The below is the output:

https://onedrive.live.com/?authkey=%...212049&o=OneUp

and the Gparted:
https://onedrive.live.com/?authkey=%...212049&o=OneUp

Again, my goal is to install the Zorin Lite on side of Windows XP/

It is solved with logic partitions created by Gparted which comes with Zorin Live.