we were having Document library created on SharePoint 2010 Environment. Library is having Multiple folders and around 1500 documents currently stored in the library.

This library is created around 11 months ago. Suddenly we are getting following error on pages when we try to open a folder.

Please Note: Most of the time Document library is working as expected but we get this error time to time. It is not consistent and still cannot find a pattern for it.

Unable to display this Web Part. To troubleshoot the problem, open this Web page in a Microsoft SharePoint Foundation-compatible HTML editor such as Microsoft SharePoint Designer. If the problem persists, contact your Web server administrator

I have read following articles

http://sharepoint.stackexchange.com/questions/74794/suddenly-a-lot-of-sharepoint-sites-get-the-error-unable-to-display-this-web-par

As I checked in the server KB2844286 is already installed in the server but in some time back. We start getting this error only one month ago.

Appreciate any suggestions because Since this is a production server If Im going to remove KB2844286 I need to be confident to remove the KB because as I see it was installed long time back.

Thanks in Advance 

• Moved by Wendy DZMicrosoft contingent staff, Moderator Friday, October 31, 2014 3:17 AM sp10

Hi Tharindu,

Please reboot the server, check whether this issue still exists.

Please re-install KB2844286 which will require a reboot and the patch requires at the very least an IISRESET, compare the result.

A similar post for your reference:

http://techchucker.wordpress.com/2013/07/16/issue-kb2844286-security-update-on-sharepoint-2010/

If this issue still exists, please check the log file to find more information about this issue.

Best Regards,

I would suggest that you try these two options:

1. reindex that list only.

2. Create a custom view with the required columns and then apply that view on your list view webpart.