# Patch Installation Failure

## Problem

Patch Deployment, Automated Patch Deployment, Service Pack Installation fail with error - "%1 is not a valid Win 32 application" (or) "The data is invalid" (or) "Data of this type is not supported".

## Cause

You will encounter this error if the patch download is incomplete during patch deployment due to one or more of the following reasons:

- Endpoint Central MSP Server goes down while downloading the patches/service packs.
- Internet Connection is lost during the download process.
- Connection refused by Microsoft Download Server.

## Resolution

Try re-downloading the patches to solve the issue. To do this,

*Go to Patch Mgmt > Downloaded Patches > Select and Delete the patch and re-deploy the configuration.*

If this does not solve the issue, then ensure the proxy credentials specified under *Admin > Proxy Settings* is valid. If you are confident with the credentials, then check the patch size. If the patch size seems to be valid, re-deploy the configuration.

In case the configuration still fails, contact support.

**Applies to:** Patch Management, Service Pack Installation, Automated Patch Deployment

**Keywords:** Patch Management, Patch Deployment Failure, SP Installation Failure, Scheduled Patch Deployment Failure