file corrupt error message on every download

Every time I TRY to download anything, updates to windows 7, a new version of adobe reader or trail software, it downloads fine but then doesn't install because a file is corrupt.  I have tried turning off my norton firewall and other security, connecting directly to the modem, using the wireless connection, using firefow, using IE, holding my breath and just about anything else mentioned in any of the forums and nothing works.  I tried reinstalling windows 7 too.  I have a Toshiba satellite notebook connected to a netgear router to a time warner cable modem.  any ideas?

Question Info

Last updated January 22, 2019 Views 7,817 Applies to:

Hello kwiktx,

Thank you for posting to the Microsoft Answers Forum.

Have you used System File Checker (SFC) to check for any corrupt system files? If not, do so now.

Click Start
Type: CMD, from the results, right click CMD
Click 'Run as Administrator'
At the Command Prompt, type:
sfc /scannow

This will check for any integrity violations and fix any corrupted operating system files.

Restart your system

Now run chkdsk:
1. Disable any security software before attempting to upgrade or do a clean install.
2. Make sure your computer is updated (devices and applications)
3. Disconnect any external devices before installing.
4. Check your hard disk for any errors:
Click Start
Type: CMD, from the results, right click CMD
Click 'Run as Administrator'
At the Command Prompt, type: chkdsk /r /f
When you restart your system, your computer will be scanned for errors and attempts will be made to correct them.

If you still can't install, I suggest you look at the System and Application Event log to check for any errors.

You can open Event Viewer several different ways. 

  • Open Event Viewer by clicking the Start button , clicking Control Panel, clicking System and Maintenance, clicking Administrative Tools, and then double-clicking Event Viewer. If you are prompted for an administrator password or confirmation, type the password or provide confirmation.


Here's another way to open Event Viewer: Click the Start button . In the Search box, type Event Viewer, and then, in the list of results, double-click Event Viewer.

If you have any errors that need explanation, please reply back and list there here so we can assist you. Please give exact error messages.


Microsoft Answers Support Engineer
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