Hello, I recently installed Kaspersky Antivirus in 6 computers at the office. Two are presenting some issues I have not seen before. The biggest problems is that in one computer with Microsoft Outlook 2019, all of a sudden all attachments come with a weird extension and it doesnt allow to preview the attachment nor to open it with the pertaining program. For example, excel attachments normally come with a .xls extension, however it is now displaying as .xls_ and you cannot open it or anything. PDFs are also coming with .pd_ I have tried searching online for thsi error but i cannot find it anywhere, and the only change made to the computer was the Kaspersky installation. I even tried deleting the email account and reinstalling it in case it was something relating to outlook and the file being correupted, however the problem persists. I could you can assist Azucena