Windows 7 SP1 doing unexpected language pack operations, filling up CBS log


I have an Asus Windows 7 SP1 Laptop.

I have noticed that the CBS log grows by about 20Gb a week, quickly filling the hard drive.

On closer inspection the CBS persist file timestamps match with log entires such as the one at the bottom of this post.

The log contains a lot of similar entries, with many different language pack codes.

The computer has no need of langauge packs other than UK English, so I have no idea what is triggering these events. Additionally, lpksetup only shows UK English as installed!


Log Name:      System
Source:        Microsoft-Windows-LanguagePackSetup
Date:          19/01/2015 10:46:06
Event ID:      1043
Task Category: Removing language pack
Level:         Error
User:          SYSTEM
Computer:      PHIL-LAPTOP.dg.local
CBS failed to remove the language pack for zh-TW. Returned CBS error code 0x80073701.
Event Xml:
<Event xmlns="">
    <Provider Name="Microsoft-Windows-LanguagePackSetup" Guid="{7237FFF9-A08A-4804-9C79-4A8704B70B87}" />
    <TimeCreated SystemTime="2015-01-19T10:46:06.890024700Z" />
    <Correlation />
    <Execution ProcessID="5340" ThreadID="6680" />
    <Security UserID="S-1-5-18" />
    <Data Name="Language">zh-TW</Data>
    <Data Name="Error">0x80073701</Data>
Who is Participating?
rpmConnect With a Mentor Author Commented:
No luck with any tests or procedures! In the end I reinstalled it!

David Johnson, CD, MVPOwnerCommented:
Did you install the Chinese language pack or are you trying to remove it?
I swear I participated in a thread with the exact same problem not too long ago, but I can't find it.

Anyway, the CBS.log file is part of the Windows Resource Protection.

Running System File checker may help:

The problem may be with Windows Update. You can run the System Update Readiness Tool, or CheckSUR
Free Tool: Port Scanner

Check which ports are open to the outside world. Helps make sure that your firewall rules are working as intended.

One of a set of tools we are providing to everyone as a way of saying thank you for being a part of the community.

BTW, the "CBS" in CBS.log stands for Component Based Servicing
rpmAuthor Commented:
No, I have neither installed or tried to remove a language pack ever on this laptop!
Any update? Did you run CheckSUR?
rpmAuthor Commented:
Problem was not solved!
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