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#1
Extremely slow shutdown-boot after clean install
Hello! A customer gave me a Lenovo Z70-80 laptop (i7-5500U, 16GB DDR3, 500GB Samsung 850 Evo, latest BIOS) to do a clean install of W10, because it was cloned a couple of years ago from the stock spinning rust to the SSD.
I of course did a secure rease on the SSD, and installed the last W10 21H2 from Microsoft's ISO (UEFI mode). I then did all the updates (version 10.0.19044.1387), and noticed that, after the blue screen with spinning balls at restart, there's a minute-minute and half long black screen, then there's the Lenovo logo with the spinning balls, around 2 minutes long, and after that there's the login screen and desktop appears. Apart from that, the laptop is lightning fast, as it should be.
I already did an extended test of the SSD (w. Parted Magic) and RAM (w. Memtestx86), both are good. I then tried to do a boot trace, and noticed that the Session Init phase is around a minute long, as are smss.dll and ntdll.dll in ther same time period. My knowledge of Windows Performance Analyzer ends here... Can someone look into the boot trace and enlighten me about this problem? Many thanks in advance,
Federico.
Here's the trace: Microsoft OneDrive - Access files anywhere. Create docs with free Office Online.