Environmental Science ：

The computer ： lenovo E14

System ：Windows 10 pro 64 position

Problem description ：

Win10 System , Turning on and opening everything is slower than before , Turn the mouse around and wait for about 1 minute , Open the resource manager, my computer is slow , All of a sudden

Solution ：

1.sfc/scannow Scanning is slow （ Unresolved ）

2. Restart and enter safe mode to execute sfc/scannow （ Unresolved ）

3.chkdsk c: /f Restart check C Disk and fix the error （ Unresolved ）

4. Entry system dism Image comparison repair （ Blue screen before execution , happen 2 Time ）（ Unresolved ）

5. Scan the whole anti-virus （ Unresolved ）

6. Reinstall the system （ Unresolved ）

7. Replace the memory module ( solve )

Test judgment ：
1. Into the Win PE Next Loading and normal system , It's almost slow

2. however BIOS Test memory module fast test is passed

3.dism Image comparison repair （ Blue screen before execution , happen 2 Time ）

4. Reinstalling the system is more or less

From the above, we can get , There may be a memory problem , After replacement memory test , Identify memory problems