Impossible de charger xpcom

ok it's an infection, it's for loading a miner, I think.

Here is the correction to be made with FRST. You can refer to this explanatory note with screenshots.
Restart FRST and then press CTRL + Y on your keyboard.
The Notepad will open, copy/paste this.

CreateRestorePoint:
CloseProcesses:
Startup: C:\Users\Pc\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\B3BC88F584B87D15.lnk [2018-08-22]
ShortcutTarget: B3BC88F584B87D15.lnk -> C:\Users\Pc\AppData\Roaming\B3BC88F584B87D15\firefox.exe (Mozilla Corporation)
C:\Users\Pc\AppData\Roaming\B3BC88F584B87D15
2018-11-04 16:13 - 2018-11-04 16:13 - 000178320 _____ (AVAST Software) C:\Users\Pc\Downloads\avast_free_antivirus_setup_online.exe
2018-11-04 15:53 - 2018-11-04 15:54 - 044630960 _____ (Mozilla) C:\Users\Pc\Downloads\Firefox Setup 63.0.1 (1).exe
2018-11-04 11:38 - 2018-11-04 11:38 - 007592144 _____ (Malwarebytes) C:\Users\Pc\Downloads\adwcleaner_7.2.4.0.exe
2018-11-04 11:03 - 2018-11-04 11:18 - 044630960 _____ (Mozilla) C:\Users\Pc\Downloads\Firefox Setup 63.0.1.exe
2018-11-04 10:56 - 2018-11-04 10:56 - 000000000 ____D C:\Windows\System32\Tasks\Avast Software
2018-11-04 10:55 - 2018-11-04 10:55 - 000000000 ____D C:\Program Files\Common Files\AVAST Software
2018-11-04 10:49 - 2018-11-04 11:36 - 000000000 ____D C:\ProgramData\AVAST Software
EmptyTemp:
RemoveProxy:
Reboot:

Save the content via the file menu then save.

Close Notepad, return to FRST and click on the "Fix" button.
A restart may be necessary and automatic.
A text file will appear, copy/paste the content here in a new message.

Restart the computer

Are you sure you followed the procedure correctly?
Did you delete all the Mozilla folders as indicated?

To check the computer, I invite you to perform this FRST analysis and return the reports:

Follow the FRST tutorial. ( take the time to read carefully - everything is well explained ).

Download and run the FRST scan,
Wait for the scan to finish, a message will indicate that the analysis is complete.

Three FRST reports will be generated:

• FRST.txt
• Shortcut.txt
• Additional.txt

Send these 3 reports to the site https://pjjoint.malekal.com/ to share them.
Then return the 3 pjjoint links leading to the reports here in a new response so that we can consult them.

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Please press any key to continue the disinfection...

Hello,

Did you execute without forgetting any step in the tutorial?

Try this
Press Windows + R
Type --> control panel and OK

File Explorer Options
View tab
Check --> show hidden files, folders, and drives
Apply and OK.

Next, Programs and Features
Uninstall Firefox (including the profile)
Restart the PC.

Go to delete the mozilla folder in these 3 directories:
Press Windows + E
--> C:\users\your username\AppData\Roaming
--> C:\users\your username\AppData\Local
--> C:\Program Files (x86) and/orPrograms

Delete the Firefox shortcuts on the desktop.

Reinstall the desired version:
--> Firefox 64 bit
--> Firefox 32 bit

--
Humans are at their best when things are at their worst.

Hello,

Reinstall Mozilla Firefox properly by following this procedure exactly: Repair and reinstall Mozilla Firefox properly

Make sure to follow the procedure carefully.

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Please press any key to continue the disinfection...