7.27.3 Can you answer these questions?

7.27.3.1 MiKTeX can not update

https://tex.stackexchange.com/landing/r/digest?cta=question&id=596375

I'm trying to install MiKTeX on a windows 10 machine. While updating after installation it stuck on package miktex-zzdb1-2.9 and says 
package="l3backend", arhiveFile="C:\Users\portable\... 
[errors] [miktex] [windows] [update]
 

asked by masde607 https://tex.stackexchange.com/landing/r/digest?cta=user&id=240444 1 vote

7.27.3.2 How to fix error "\caption outside of float"

https://tex.stackexchange.com/landing/r/digest?cta=question&id=596423

here is my code: 
\subsubsection{Example 1} 
\begin{center} 
\begin{tabular}{l | c | c } 
Fib. Num. & $3x+5$ & Convergence\\ 
\hline 
Fn 0 & 5 &  \\ 
Fn 1 & 8 & 1.6\\ 
Fn 2 & 8 &... 
[captions]
 

asked by Stitch https://tex.stackexchange.com/landing/r/digest?cta=user&id=241775 1 vote

answered by Steven B. Segletes https://tex.stackexchange.com/landing/r/digest?cta=user&id=25858 0 votes

7.27.3.3 Toggle in the PDF

https://tex.stackexchange.com/landing/r/digest?cta=question&id=596008

Is there a way to create a toggle in the PDF (or other output formats) generated by LaTeX? 
I mean something like this figure: 
If you click on the arrow, you can read more 
[pdf]
 

asked by David R https://tex.stackexchange.com/landing/r/digest?cta=user&id=131362 1 vote