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I wrote some lines and I wanted to view the pdf, so I compiled and built but I have this error message:

This is pdfTeX, Version 3.1415926-2.4-1.40.13 (MiKTeX 2.9 64-bit)
pdflatex.EXE: The memory dump file could not be found.
pdflatex.EXE: Data: pdflatex.fmt
texify: pdflatex failed for some reason (see log file).

Can you help me to correct this error?

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Welcome to TeX.SX! You may have a look on our starter guide. – Heiko Oberdiek May 14 '13 at 15:40
You can try to regenerate the format files (initexmf --dump) or just the format for pdfLaTeX (initexmf --dump=pdflatex). – Heiko Oberdiek May 14 '13 at 15:43
Thank you for your answer but can you tell me where i have to write this please? – GuestMan May 16 '13 at 15:57
The command line. Alternative, Start->Programs->MiKTeX 2.9->Maintenance->Settings and "Update Formats", see documentation with screenshot. – Heiko Oberdiek May 16 '13 at 20:13
Encountered a similar problem ... Error disappeared when I ran the same command with Admin privileges. After that, things seem to work even without Admin on, guess it was some one time setup which was causing the problem. – vervenumen Aug 18 '13 at 10:54

Maybe the following helps.

  1. You can try to regenerate the format files inside the command line window of Windows. Therefor type initexmf --dump or just the format for pdfLaTeX initexmf --dump=pdflatex.
  2. You can use the frontend of MikTeX: Start => Programs => MiKTeX 2.9 => Maintenance => Settings and Update Formats:

enter image description here

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