java programs won't run and can't reinstall or uninstall

When I go to install update for java I get an error "1316. A network error occurred while attempting to read from the file C:\windows\installer\jre1.7.0_17-c.msi"

I looked in installer and that file isn't there.  I try to uninstall my currant java and get the same error.  

I tried to copy a file to c:\windows\installer  and I get message about needing administrative permission to write to this folder.

The folder is not read only.  

Nor is it too large.  I was able to copy files to folder and to create folders in this folder.

I can install Java manually, but my java app that I need it for still won't run.

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toppropsConnect With a Mentor Author Commented:
I used jv16 power tools to find all java reference in registry and then deleted them, along with any reference on hard drive.

then I was able to reinstall java and it is working fine now.
cantorisConnect With a Mentor Commented:
Try removing Java using JavaRa:

Then reinstall.
Lionel MMSmall Business IT ConsultantCommented:
Do you have administrator rights?
Free Tool: ZipGrep

ZipGrep is a utility that can list and search zip (.war, .ear, .jar, etc) archives for text patterns, without the need to extract the archive's contents.

One of a set of tools we're offering as a way to say thank you for being a part of the community.

toppropsAuthor Commented:
yes, I have administrator rights.  I have no trouble as I said adding files to this folder.
toppropsAuthor Commented:
Javara  works at removing java, but it also said there was no install files.

that is what I'm questioning.  why is that.
Lionel MMConnect With a Mentor Small Business IT ConsultantCommented:
OK so you can install Java, you can remove java, but your java app won't run? Do I have this right? What app is it that will not run? Did you check to see with the app maker which version of Java it needs?
That Java file is pretty old.  Get the latest JRE install file here
Don't worry about the error, which presumably indicates some form of damage to your installer cache or Java's references to it.  Just remove the old version of Java - using JavaRa if need be and then install the desired version by downloading the setup file from

Use the offline version of the setup file as it will be less likely to give you problems; Jcimarron gave the link to the download site.  Choose the "Windows Offline" version.
toppropsAuthor Commented:
javara doesn't remove all of java installed.
toppropsAuthor Commented:
trying to uninstall java 7 update 45 (64-bit) I receive error "there was a problem starting c:\program files\java\jre7\bin\\installer.dll  The specified module could not be found."
toppropsAuthor Commented:
then the earlier error but  trying to read file c:\windows\installer\jre 1.7.0_45.msi"
toppropsAuthor Commented:
Because that worked the best
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