If you want to handle it simply, you'll have to go to trouble. I don't have much content, so I have to enter it manually.

Since 1 has cleaned the disk, it needs to be defragmented, or you can simply cancel the disk scan at startup.

2 Disable services that are not needed by spam services. I didn't know how many more processes you had. If you start too much, it will naturally be slow, especially for computers with insufficient memory. Sometimes a small program will kill the computer.

Plus what you don't know in the startup program, you don't even know how to leave it there. X drops, but it is enough to keep the input method and antivirus in the startup program.

4 unwanted junk programs. Delete all programs that have not been used for more than a week, and then reinstall them when they are not used. Think about the speed when you just bought the machine. Too many tedious programs will consume a lot of disk and memory.

Restore the on-off settings you don't understand. Some optimization problems, especially those involving the registry, are quite dangerous for computers.

I have more points than you, hehe. I wish I could help.

Famous image processing software

Turn off ScanDisk at startup and check whether the hardware interface is loose. If there is a lot of poisoning, it may be that one of your programs interfered with the system startup, so restore it first and then reinstall it.