{"family":"windows10","family_label":"Windows 10","build":"10240.18135","base":"10240","tag":null,"kb":"KB4491101","kb_url":"https://support.microsoft.com/help/4491101","kb_title":"February 21, 2019—KB4491101 (OS Build 10240.18135)","release_date":"2019-02-21","update_type":"2019-02 OOB","update_type_label":"Out-of-band update","servicing":"LTSB","ms_known_issues":[{"title":null,"symptom":"After installing this update, the first character of the Japanese Era name is not recognized as an abbreviation and may cause date parsing issues.","workaround":"This issue is resolved in KB4489872 .","applies_to":""},{"title":null,"symptom":"Applications that use a Microsoft Jet database with the Microsoft Access 95 file format may randomly stop working.","workaround":"This issue is resolved in KB4489872 .","applies_to":""},{"title":null,"symptom":"After installing this update, users may receive “Error 1309” while installing or uninstalling certain types of MSI and MSP files.","workaround":"This issue is resolved in KB4489872 .","applies_to":""},{"title":null,"symptom":"After installing this update, MSXML6 causes applications to stop responding if an exception was thrown during node operations, such as appendChild() , insertBefore() , and moveNode() . The Group Policy editor may stop responding when editing a Group Policy Object (GPO) that contains Group Policy Preferences (GPP) for Internet Explorer 10 settings.","workaround":"This issue is resolved in KB4493475 .","applies_to":""},{"title":null,"symptom":"Any compound document (OLE) server application that places embedded objects into the Windows Metafile (WMF) using the PatBlt API may display embedded objects incorrectly. For example, if you paste a Microsoft Excel worksheet object into a Microsoft Word document, the cells may render with a different background color.","workaround":"This issue is resolved in KB4493475 .","applies_to":""},{"title":null,"symptom":"Certain operations, such as rename , that you perform on files or folders that are on a Cluster Shared Volume (CSV) may fail with the error, “STATUS_BAD_IMPERSONATION_LEVEL (0xC00000A5)”. This occurs when you perform the operation on a CSV owner node from a process that doesn’t have administrator privilege.","workaround":"Do one of the following: Perform the operation from a process that has administrator privilege. Perform the operation from a node that doesn’t have CSV ownership. Microsoft is working on a resolution and will provide an update in an upcoming release.","applies_to":""}],"ms_none_known":false,"ms_highlights":null,"title":"February 21, 2019—KB4491101 (OS Build 10240.18135)","build_type":"release","channel_label":"Release","branch":null,"kind":"cumulative","kind_label":"Cumulative update","is_dotnet":false,"status":null,"line":{"status":null,"note":null},"created":1550750400,"created_iso":"2019-02-21T12:00:00Z","uuid":null,"permalink":"/builds/windows10/10240.18135/","tag_url":null,"index_url":"/builds/windows10/","api_url":"https://search.windowsforum.com/api/builds/build/windows10/10240.18135","records":[],"summary":null,"known_issues":[],"linked":{"news":[],"tutorials":[],"threads":[],"total":0,"exact":0,"window_days":45},"related":{"history":[{"build":"10240.18187","title":null,"created":1556193600,"kb":"KB4498375","build_type":"release","channel_label":"Release","kind":null,"url":"/builds/windows10/10240.18187/","current":false},{"build":"10240.18186","title":null,"created":1554811200,"kb":"KB4493475","build_type":"release","channel_label":"Release","kind":null,"url":"/builds/windows10/10240.18186/","current":false},{"build":"10240.18158","title":null,"created":1552392000,"kb":"KB4489872","build_type":"release","channel_label":"Release","kind":null,"url":"/builds/windows10/10240.18158/","current":false},{"build":"10240.18135","title":null,"created":1550750400,"kb":"KB4491101","build_type":"release","channel_label":"Release","kind":null,"url":"/builds/windows10/10240.18135/","current":true},{"build":"10240.18132","title":null,"created":1549972800,"kb":"KB4487018","build_type":"release","channel_label":"Release","kind":null,"url":"/builds/windows10/10240.18132/","current":false},{"build":"10240.18094","title":null,"created":1546948800,"kb":"KB4480962","build_type":"release","channel_label":"Release","kind":null,"url":"/builds/windows10/10240.18094/","current":false},{"build":"10240.18064","title":null,"created":1545220800,"kb":"KB4483228","build_type":"release","channel_label":"Release","kind":null,"url":"/builds/windows10/10240.18064/","current":false},{"build":"10240.18063","title":null,"created":1544529600,"kb":"KB4471323","build_type":"release","channel_label":"Release","kind":null,"url":"/builds/windows10/10240.18063/","current":false}],"history_total":144,"prev":{"build":"10240.18132","title":null,"created":1549972800,"kb":"KB4487018","build_type":"release","channel_label":"Release","kind":null,"url":"/builds/windows10/10240.18132/","current":false},"next":{"build":"10240.18158","title":null,"created":1552392000,"kb":"KB4489872","build_type":"release","channel_label":"Release","kind":null,"url":"/builds/windows10/10240.18158/","current":false},"wave":[]},"source":"microsoft","indexable":false,"generated":1790265164}