I tried to install teXlive on my laptop running Windows 8.1.
After unpacking, I ran "install-tl-windows.bat". It seemed OK for most of the installation, but then I got this in the terminal (the log file is the same):
Installing [2321/3058, time/total: 01:06:55/01:24:53]: qsymbols [136k] Installing [2322/3058, time/total: 01:06:57/01:24:55]: qtree [213k] xzdec: (stdin): Unexpected end of input tar: Only read 5840 bytes from archive C:\texlive\2015\temp\qtree.doc.tar untar: untarring C:\texlive\2015\temp\qtree.doc.tar failed (in C:\texlive\2015\texmf-dist) untarring C:\texlive\2015\temp\qtree.doc.tar failed, stopping install. Installation failed. Rerunning the installer will try to restart the installation. Or you can restart by running the installer with: install-tl.bat --profile installation.profile [EXTRA-ARGS]
Notice that it failed close to the end, at package 2322/3058. My texlive folder is already 4.4GB. I tried reinstalling, it redownloaded everything, and failed again near the end. If there is any way to continue the installation from where it stopped, it would be great.