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I have solved the problem. Since the computer is new it has to be a late version of Win-10 and it almost immediately upgraded. The first thing I do when I get a computer is install a 3rd party command processor, TakeCommand. I tried running the tl-install
from there. When I tried running from windows (file explorer), the first thing it did was ask if I wanted to allow it to change things. This step was somehow bypassed when I ran it from the command line. Anyway, it finally installed and I tested a sample
and it runs fine. What would have happened from the DOS command.com I do not know and am not willing to test it.</div>
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Michael<br>
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<div id="divRplyFwdMsg" dir="ltr"><font style="font-size:11pt" face="Calibri, sans-serif" color="#000000"><b>From:</b> Karl Berry <karl@freefriends.org><br>
<b>Sent:</b> Saturday, April 11, 2020 5:56 PM<br>
<b>To:</b> Michael Barr, Prof. <barr.michael@mcgill.ca><br>
<b>Subject:</b> pdflatex.fmt/install-tl-windows failures</font>
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<div class="PlainText">Michael - I suggest posting your message(s) about the failures to<br>
tex-live@tug.org instead of texhax. More people there who can answer.<br>
<br>
The version of Windows involved is useful to state.<br>
<br>
Yes, by default all the .fmt files are made as part of the installation.<br>
<br>
For the pdflatex.fmt failure, the results of running the command:<br>
kpsewhich -engine=pdftex pdflatex.fmt<br>
might be helpful. (I expect nothing is returned, which is the problem.)<br>
Using a system tool to see if a file pdflatex.fmt actually exists on the<br>
system somewhere would also be helpful.<br>
<br>
For the install-tl-windows failure, if there are any specific error<br>
messages, please include them. Otherwise there's not much anyone can do<br>
to guess the problem out of the ether. Windows installation has<br>
succeeded for others. --best, karl.<br>
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