我运行的是 Win 7 Enterprise 64bit，SP1。MiKTeX 一直运行良好，直到我运行更新（管理员）时，更新中途停止，并显示“内部错误”。从那时起，MiKTeX 就停止工作了：我无法再打开 TeX 文件、更新包存储库、运行任何更新。因此，我卸载了 MiKTeX，重新启动，以防万一运行了 CCleaner，并从头开始安装了 MiKTeX 2.9（basic-miktex-2.9.6161-x64）。安装速度快得令人难以置信，我记得过去花了 10-20 分钟看着文件夹在更新屏幕上从左到右飞来飞去……无论如何，安装结束后，我决定运行更新（管理员），但只能选择一个包，即 MiKTeX2.9（或类似包），如果我尝试选择任何其他包，我会收到消息“要安装更多包，请关闭更新，然后重试”。因此，我更新了那个包，然后再次启动更新……然后我得到了通常的“内部错误”。所以我又回到了原点。知道如何解决这个问题吗？我不是专家用户，所以如果您尝试回答这个问题，请尽量说清楚！
如果我尝试在“设置（管理员）”下更新格式，它会开始运行，然后停止。日志显示：
2016-12-30 15:34:02,801-0500 INFO miktex-makefmt - running 'initexmf --quiet --update-fndb' to refresh the file name database
2016-12-30 15:34:05,406-0500 INFO makex - Creating the etex format file...
2016-12-30 15:34:05,422-0500 INFO makex - Running miktex-pdftex.exe...
2016-12-30 15:34:05,469-0500 FATAL miktex-makefmt - miktex-pdftex.exe failed on etex.ini.
2016-12-30 15:34:28,329-0500 INFO miktex-makefmt - running 'initexmf --quiet --update-fndb' to refresh the file name database
2016-12-30 15:34:30,918-0500 INFO makex - Creating the latex format file...
2016-12-30 15:34:30,934-0500 INFO makex - Running miktex-pdftex.exe...
2016-12-30 15:34:30,965-0500 FATAL miktex-makefmt - miktex-pdftex.exe failed on latex.ini.
2016-12-30 15:34:36,871-0500 INFO makex - Creating the pdfetex format file...
2016-12-30 15:34:36,887-0500 INFO makex - Running miktex-pdftex.exe...
2016-12-30 15:34:36,918-0500 FATAL miktex-makefmt - miktex-pdftex.exe failed on pdfetex.ini.
2016-12-30 15:34:38,663-0500 INFO makex - Creating the pdflatex format file...
2016-12-30 15:34:38,663-0500 INFO makex - Running miktex-pdftex.exe...
2016-12-30 15:34:38,694-0500 FATAL miktex-makefmt - miktex-pdftex.exe failed on pdflatex.ini.
2016-12-30 15:34:40,038-0500 INFO makex - Creating the pdftex format file...
2016-12-30 15:34:40,048-0500 INFO makex - Running miktex-pdftex.exe...
2016-12-30 15:34:40,078-0500 FATAL miktex-makefmt - miktex-pdftex.exe failed on pdftex.ini.
2016-12-30 15:34:40,940-0500 INFO makex - Creating the tex format file...
2016-12-30 15:34:40,950-0500 INFO makex - Running miktex-tex.exe...
2016-12-30 15:55:11,097-0500 INFO miktex-makefmt - running 'initexmf --quiet --update-fndb' to refresh the file name database
2016-12-30 15:55:13,642-0500 INFO makex - Creating the etex format file...
2016-12-30 15:55:13,658-0500 INFO makex - Running miktex-pdftex.exe...
2016-12-30 15:55:13,689-0500 FATAL miktex-makefmt - miktex-pdftex.exe failed on etex.ini.