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Recover Kaspersky after Windows 10 upgrade STEP 1 Download and run the fix tool 1. Download the fix tool . Save the file to the Windows desktop. 2. On your desktop, right-click the Windows10 Kaspersky Upgrader.exe file, and click Run as administrator . By running the tool, you accept the Usage Agreement . 3. In the installation prompt window, click Next . 1. Follow the on-screen instructions to complete the installation. If you do not able to see the installation prompt window, go to Step 2. STEP 2 Download and install Kaspersky · To download and install Kaspersky from your Kaspersky account, read Download Kaspersky on your device . If you have received Kaspersky from your service provider, read Install Kaspersky fro...