Windows 10 fast boot, very slow reboot

zinou said:

This error usually happens when there are more events recorded than the buffer size can contain.

Try this:
Edit the "SampleGeneralProfileForLargeServers.wprp" file and set 1024 kb for the buffer size. you find this file under "C:\Program Files (x86)\Windows Kits\10\Windows Performance Toolkit\SampleGeneralProfileForLargeServers.wprp"

See this thread for more info: Windows Performance Analyzer error

I already tried that, I found your reply from another thread and tried it and it gave the same error. Only I didn't change the buffer size. Ill try it next.

Ah the buffersize is already 1024 :/

Jthelizzard said:

I already tried that, I found your reply from another thread and tried it and it gave the same error. Only I didn't change the buffer size. How do I change it?

I forget to add that you need to select this profil when you record your boot trace:

No, you keep these:

Jthelizzard said:

Number of iterations 1?

Yes, 1 iteration.

Waoo. a long delay in the presession & session init phases

I notice a high disk I/O on your 3rd disk (Samsung SSD 850 EVO 1TB) that holds the D:\ partition

Can you unplug this disk and boot your system to confirm it's this disk causing the delay.something is reading from the disk, like crazy and I can't figure it out because ofcall stack symbols lacking.I need you to take another boot trace and check the Disk I/O activity and File I/O activity.Don't chase the big delay, it will result in a huge trace file . Compress maximum the trace before you share it.

While waiting for the next boot trace, I tried to identify what the system is trying to read from the disk 3;



it seems like windows is spending time (33s) reading all the volume snapshots while trying to bring the volume D: online.

According to the trace file, I see 6 snapshots;



can you run this command to display the available volume snapshots on your computer: vssadmin list shadows

I think you have enabled shadow copies on the D: volume. if it's the case disable it.