有人可以帮我解决以下问题吗：
我编写了以下代码，但无法编译它。
\documentclass[10pt,a4paper]{article}
\usepackage[utf8]{inputenc}
\usepackage{amsmath}
\usepackage{amsfonts}
\usepackage{amssymb}
\begin{document}
Hi
\end{document}
我已经安装了 MikTeX，更新了它，然后安装了 TeXstudio，我不知道我做错了什么。
我收到以下错误信息：
Sorry, but pdflatex.exe did not succeed. The log file hopefully contains the information to get MiKTeX going again: C:\Users\User\AppData\Local\MiKTeX\miktex\log\pdflatex.log
Process exited with error(s)
当我打开日志文件时，我看到了以下内容。我该怎么做才能修复它？
2020-08-27 20:43:19,953+0530 INFO pdflatex - this process (3080) started by 'texstudio' with command line: pdflatex.exe -synctex=1 -interaction=nonstopmode aa.tex
2020-08-27 20:43:19,968+0530 INFO pdflatex - allowing known shell commands
2020-08-27 20:43:19,968+0530 INFO pdflatex - enabling input (output) from (to) processes
2020-08-27 20:43:20,031+0530 INFO pdflatex - going to create file: pdflatex.fmt
2020-08-27 20:43:20,109+0530 INFO pdflatex.core - start process: initexmf --dump-by-name=pdflatex --engine=pdftex
2020-08-27 20:43:23,842+0530 ERROR pdflatex - C:\Program Files\MiKTeX\miktex\bin\x64\initexmf.exe did not succeed; exitCode: 1
2020-08-27 20:43:23,842+0530 ERROR pdflatex - output:
2020-08-27 20:43:23,842+0530 ERROR pdflatex -
Sorry, but "MiKTeX Configuration Utility" did not succeed.
The log file hopefully contains the information to get MiKTeX going again:
C:\Users\User\AppData\Local\MiKTeX\miktex\log\initexmf.log
2020-08-27 20:43:23,842+0530 FATAL pdflatex.core - The memory dump file could not be found.
2020-08-27 20:43:23,842+0530 FATAL pdflatex.core - Data: fileName="pdflatex.fmt"
2020-08-27 20:43:23,842+0530 FATAL pdflatex.core - Source: Libraries\MiKTeX\TeXAndFriends\texmfapp.cpp:708
2020-08-27 20:43:23,842+0530 FATAL pdflatex - The memory dump file could not be found.
2020-08-27 20:43:23,842+0530 FATAL pdflatex - Info: fileName="pdflatex.fmt"
2020-08-27 20:43:23,842+0530 FATAL pdflatex - Source: Libraries\MiKTeX\TeXAndFriends\texmfapp.cpp
2020-08-27 20:43:23,842+0530 FATAL pdflatex - Line: 708
2020-08-27 20:43:23,842+0530 INFO pdflatex - this process (3080) finishes with exit code 1
我不知道为什么我无法编译任何文档。请帮帮忙。