Start with Step 4 to turn off Startup freeloaders which can conflict and cause issues, then Step 7 to check for infection the most thorough way, then step 10 to check for damaged System Files, and also Step 16 to test a new Local Admin account. Go over this checklist to make sure the install is set up correctly, optimized for best performance, and any needed repairs get done. Make sure you don't have Bitlocker and then you can Disable the Crypto Service in services.msc settings: I'm Greg, an installation specialist and 10 year Windows MVP here to help you.
