KB946058 is available using Microsoft Update only. If the group policy prevents you from downloading this update then you can use the following manual workaround.
- Go to Microsoft Catalog site
- Type KB946058 in the search field and click on search. You will see this: Update for Windows Live Writer (KB 946058) . Click on Add to Add it to download basket.
- Click on View Basket and then Click on Download.
- Select a folder using browse button and click on continue.
- It will start downloading the files in a folder named Update for Windows Live Writer (KB 946058). File Size: 93.6 MB
- Once download is complete, expand all-writer_98208e1045c9a7601507b61ed94e27ba598ff527.cab file as follows.
- Go to dos prompt and type: expand all-writer_98208e1045c9a7601507b61ed94e27ba598ff527.cab writer.msp
- Run writer.msp by double clicking on it from Windows explorer.
Note: You must install the Final version of Live writer before installing this update.