> Source: [sk121359](https://support.checkpoint.com/results/sk/sk121359)

# sk121359 - Unable to delete pre-defined IPS rules when upgrading from R77.30 to R80.10

| Property | Value |
|----------|-------|
| Solution ID | sk121359 |
| Date Created | 2017-11-09 |
| Last Modified | 2022-04-28 |
| Technical Level | Advanced |
| Products | Security Gateway |
| Versions | R82.10, R82, R81.20 |
| OS | Gaia |

## Symptoms

- User upgrades from R77.30 to R80.10 and is unable to remove the 'IPS' policy under 'Threat Prevention'. The 'Delete' option is greyed out.

## Cause

The users' policies are not modified automatically.

The user is the one to decide on his policy architecture.

So once the user gets rid of all of his Pre-R80 gateways that have IPS blade enabled, his policy will still remain as before.  

If MDS is used, all Pre-R80 gateways will have to be changed in order to remove IPS shared layer.

## Solution

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