impossible to find the file.....& error 0x80070002

Hi, first can you confirm the System Restore completed successfully (S. Restore is well known to be not very reliable).

Which Windows build are you using?
This can be really important, and most people don't mention it or include it in their specs.
Windows key + R, winver.

You say SFC /SCANNOW passed, so just for test purposes, please try creating a new user, log in as that user, and see if you have the same problems or not, and post back.

Do you have any disk images? We constantly urge users to routinely use disk imaging (e.g. Macrium reflect (free) + external storage for image sets). You say

as last hope I would not reinitialize the computer since I have to reinstall all the applications...

. Using disk imaging can often mean you can restore your system to a previous good state (and any imaged disk or partition) and so avoid a clean install.

History: do you have any idea what happened around the time this started? For example, did you receive and update or upgrade? Make significant changes?

Basics: As we know nothing about your system, please..

1. First check your disk(s):
Download and run Hard Disk Sentinel (trial) (includes SSDs) (portable version)
(This gives exceptionally good text comments)
Download Portable Hard Disk Sentinel Professional 5.30 / 5.30.3 Beta
Post a screenshot of its GUI using the Insert Image icon above your post.
If that doesn't work for you try HD Tune (portable) - Health and Error Scan tabs
Download Portable HD Tune 2.55

If all disks are reported as good, continue.

2. Now check your file system:

From an admin command or powershell prompt
[Windows key + X, click command prompt (admin)]
chkdsk C: /F
Your PC will need to restart.
Post back the result, which you can get after a restart as follows:
Read Chkdsk Log in Event Viewer in Windows 10 | Tutorials
or
How to read Event Viewer log for Chkdsk in Windows 10 [Tip] | dotTech

Possible repairs:
Options that come to mind are
Tweaking.com's free repair tool
An in-place upgrade repair install which keeps all programs, data and most settings.
- but please first run through the steps above.

Hi, used to work for Plessey/GPT/Marconi..

It's not a question of creating a disk image now- except as a possible backup- but whether you have been in the habit up 'til now of routinely creating disk images.

If you had an image created before this occurred, you could restore your system from it. That's the whole point- being prepared for anything from a failed upgrade, unbootable system, ransomware, user mistake... etc..

That you are using 1803 is significant should you perform an in-place upgrade repair install, as you would need an 1803 iso - freely downloadable if you haven't one.

From a Command Prompt, enter path. Post the results of that here please. For instance, mine looks like this:

Code:

path
PATH=C:\WINDOWS;C:\Windows\System32;C:\Windows;C:\WINDOWS\System32\Wbem;C:\WINDOWS\System32\WindowsPowerShell\v1.0\;C:\WINDOWS\System32\OpenSSH\;D:\Tools;D:\x2;D:\X2\Macros;C:\rexxprogs;D:\Unixtools;D:\Systools;C:\Program Files (x86)\ObjREXX;C:\Program Files (x86)\ObjREXX\OODIALOG;C:\Program Files (x86)\Windows Kits\10\Windows Performance Toolkit\;C:\Program Files (x86)\Windows Kits\10\Microsoft Application Virtualization\Sequencer\;C:\WINDOWS\system32;C:\Users\ztruk\AppData\Local\Microsoft\WindowsApps

Path looks okay. I was hoping it was messed up somehow. After breaking it down into directories it looks like this:

PATH=C:\ProgramData\Oracle\Java\javapath;
C:\Program Files (x86)\Common Files\Oracle\Java\javapath;
C:\Program Files (x86)\Intel\iCLS Client\;
C:\Program Files\Intel\iCLS Client\;
C:\WINDOWS\system32;
C:\WINDOWS;
C:\WINDOWS\System32\Wbem;
C:\WINDOWS\System32\WindowsPowerShel l\v1.0\;
C:\Program Files (x86)\Intel\Intel(R) Management Engine Components\DAL;
C:\Program Files\Intel\Intel(R) Management Engine Components\DAL;
C:\Program Files (x86)\Intel\Intel(R) Management Engine Components\IPT;
C:\Program Files\Intel\Intel(R) Management Engine Components\IPT;
C:\Program Files (x86)\Common Files\Autodesk Shared\;
C:\MATLAB701\bin\win32;;
C:\WINDOWS\System32\OpenSSH\;
C:\Program Files\Calibre2\;
C:\OrCAD\OrCAD_16.0\tools\fet\bin;
C:\OrCAD\OrCAD_16.0\tools\pcb\bin;
C:\OrCAD\OrCAD_1 6.0\tools\specctra\bin;
C:\OrCAD\OrCAD_16.0\tools\PSpice;
C:\OrCAD\OrCAD_16.0\tools\PSpice\Library;
C:\ OrCAD\OrCAD_16.0\tools\Capture;
C:\OrCAD\OrCAD_16.0\tools\bin;
C:\Users\gt\AppData\Local\Microsoft\WindowsApps

The only one I might be suspicious of is the last one I highlighted and you have a double ;; after

C:\MATLAB701\bin\win32;;

but that shouldn't matter.

Reiterate post #2

The suggested repairs would address (hopefully) security/permissions issues.
Tweaking.com offers a portable version (no installation needed).

Please don't omit the chkdsk and disk check stages- no use building a house on sand.