Helix3 template not installed on Joomla! What am I doing wrong?

Question

CMS

Good afternoon, dear toasters!
Recently I asked a question about choosing a local server for installing Joomla!, they advised OpenServer instead of Denwer. There were internal surveys, but I decided. Since OpenServer is praised on the Internet for its portability, I unpacked it on a USB flash drive, tried it, everything was installed without problems, tweaked some settings, installed Joomla! iiiiii ..... the working day ended, I had to go home. I took the flash drive, plugged it into my laptop at home and everything worked again, Joomla! started.
Because I'm a teapot, I decided to study Joomla! based on a ready-made template, useful to look for the best. found Helix3, liked it. Downloaded from the official site. I started the installation and then stumbled with the first problem, the template itself did not want to be installed (helix3_template_only_j3_v1.8.zip), it gave an error. got to figure it out and then came across a little misunderstanding:
On a working computer, when I unpacked OpenServer to a USB flash drive, it (the USB flash drive) was defined under the letter E: \, and the home computer put the USB flash drive under the letter G: \ and for a long time I was stupid in the screen why Joomla! in the description of the error writes: they say I can not move the files to the drive E:\OpenServer\domains\website\tmp. Of course you can't be a bastard, he doesn't exist. On the Internet, I found information about editing the configuration.php file, climbed in, corrected the letter to the correct one and the template was immediately installed. from here follows 2 questions to OpenServer specialists:
1) If I use OpenServer on a flash drive on different computers, then it is necessary that on all computers the letter is assigned the same (well, or manually through administration) or ....?
2) What is the best way to use OpenServer? Always keep all the data on a flash drive and run the server from it and make up the site and periodically make a backup copy on the computer. or run the server from a computer, work, write everything to a USB flash drive (if you need to work on another computer), download it to another computer and start and work from it?
But now that's not about it .... let's move on
then I decided to install "helix3_quickstart_j3_v1.8.zip" downloaded from the same official site, but the procedure for installing this archive takes 15-20 minutes, in the end what happens? The archive is copied along the route G:\OpenServer\domains\website\tmp while it is spinning on the "Extension Manager" page supposedly downloading , the "install_5853898902eb7" folder appears in the tmp folder and the folders in it are very similar to the root folders of the site itself. As a result, after 15-20 minutes after it supposedly loads, it gives an error . Both the archive and the install folder disappear from the temp folder. When you click on the link to the site, a "absolutely empty" page opens.I thought that the archive "helix3_quickstart_j3_v1.8.zip" is the template filling, so to speak, as on the Helix3 demo site, or am I wrong? Maybe you do not need to install this archive, but unpack it into the site folder? Please tell me, dear experts, you can even throw a stone, but tell me what I'm doing wrong?

Answer 1

Quickstart is a Joomla installation along with Helix.

Answer 2

Demo data may not be in the template.

Answer 3

They just don't exist in the template. I checked the folders, they are empty. But in the archive "helix3_quickstart_j3_v1.8.zip" these files are. The question is how to upload them to Joomla!