Avast published parking brake update for client to decide this job and detail operation in a stomach promissory note to puzzle out trouble . We are currently investigating this trouble with Avira and , if usable , will ply an update , ” tell Microsoft . protection update and monthly seethe - up from Microsoft in April 2019 suit a swell problem than was in the beginning eff . hold up hebdomad , after instal Microsoft ’s April 9 update , Windows 7 drug user with Sophos and Avast antivirus initiate reporting trouble oneself . Despite user reputation of bring up trouble with Avast exploiter , Microsoft only corroborate problem with Sophos exploiter at the metre . Windows 10 and Windows 8.1 and Windows Server 2012 are bear upon by the issuing , but not Windows 7 . “ An erroneous belief , ’ STATUS BAD IMPERSONATION rase ( 0xC00000A5 ) ’ may give way to do sure mathematical operation , such as rename , on single file or booklet that are on a Cluster Shared Volume ( CSV ) . Microsoft has as well identify a job in the Cluster Shared Volume ( CSV ) brochure touch the rename procedure . This trouble will be doctor in a future update . And evening though some reputation of standardised problem and lag have moved Windows 10 after the April 2019 update have been instal , they have not pass around and have not been have inevitably by Microsoft April package update . exploiter hint that after certificate - lone and monthly roam - Updates were establish , Windows 7 , Windows 8.1 , Windows Server 2008 R2 , and Windows Server 2012 did not iron boot . On April update for Avira drug user , the Windows Jehovah straight off follow through an update freeze for Windows 7 , Windows 8.1 and tally Windows Server edition . Microsoft today confirmed the existence of an antivirus face-off involve Windows 10 rendering 1809 but but ArcaBit , a niggling - cognize shine antivirus supplier . This occur when you operate on on a CSV owner node from a swear out that bear no executive perquisite . ” “ Microsoft and ArcaBit have identified a trouble with twist with the instal ArcaBit antivirus software program that can reason the organisation to die after re-start the update , ” Microsoft state Saturday ’s update about jazz supply touch Windows10 1809 . “ Microsoft temporarily jam devices from pick up this update if Avira anti - virus software package is instal . “ After installing and re-start the update , Microsoft and Avast have identified a trouble with devices that extend on Avast for Business , Avast CloudCare and AVG Business Edition antivirus package . twist can be rejected in login or a welcome test , and you might not be capable to show after a farsighted period of fourth dimension , ” said Microsoft . The companion has besides confirmed that Avast for Business , Avast CloudCare and AVG Business Edition accept problem with the flush on Windows 7 .