Kaspersky removed its antivirus software from American computers and replaced it with UltraAV's solution without prior warning, leading to confusion among users. Although Kaspersky sent an email two weeks prior about the transition, the communication was unclear, leaving many unaware of the immediate switch. This change occurred ten days before a U.S. ban on Kaspersky products by the Biden Administration. Some users reported difficulties uninstalling the new UltraAV software, prompting many to consider alternative antivirus products.