# Temp file fails verification every time I try to update MiKTeX [closed]

I have been using TeX for two years now, mostly as a replacement for Word. I'm an academic and I like the typesetting capability, especially when I need to use math, but am not an advanced user. I attempted to update my distribution recently because I was able to glean from other questions on this site that doing this would likely solve another problem I had. When the update failed, I looked for solutions here and found none, so I uninstalled and reinstalled MiKTeX (using Protext). Then I ran into the same problem again when trying to update the distribution. I tried several different mirrors (med.harvard, bay.chicago, and most recently mackichan) and got a similar error each time. My system is a Vista 64-bit. The log file is pasted below:

```MiKTeX Update Wizard Report

Version: 2.9.4497
Date: Tuesday, May 21, 2013
Time: 13:01:19
starting package maintenance...

installation directory: "C:\Program Files\MiKTeX 2.9"

package repository: http://ctan.mackichan.com/systems/win32/miktex/tm/packages/

lightweight database digest: c037a7e4ea61280289db1153192ca40a

going to install 10 file(s) (1 package(s))

going to remove 44 file(s) (2 package(s))

10661531 bytes, 483.70 KB/Sec

visiting repository h ttp://ctan.mackichan.com/systems/win32/miktex/tm/packages/...

repository type: remote package repository

132563 bytes, 322.83 KB/Sec

lightweight database digest: c037a7e4ea61280289db1153192ca40a

Error: The operation could not be completed because the following file failed verification:

C:\Users\Sam\AppData\Local\Temp\mik8748.tmp
```

## closed as too broad by Marco Daniel, T. Verron, lockstep, Claudio Fiandrino, Stefan Kottwitz♦Jul 7 '13 at 11:40

Please edit the question to limit it to a specific problem with enough detail to identify an adequate answer. Avoid asking multiple distinct questions at once. See the How to Ask page for help clarifying this question. If this question can be reworded to fit the rules in the help center, please edit the question.