Let’s analyze the GUID bytes:
86CA1AA0-34AA-4e8b-A509-50C905BAE2A2
To identify its origin:
If the key exists and you don’t recognize the software, it’s a candidate for removal.
Modifying the wrong CLSID can break:
Always export the registry key before making changes:
reg export "HKCU\Software\Classes\CLSID\86CA1AA0-34AA-4e8b-A509-50C905BAE2A2" backup.reg
| Action | Command |
|--------|---------|
| View default value | reg query "HKCU\Software\Classes\CLSID\GUID\InprocServer32" /ve |
| Set DLL path | reg add "…\InprocServer32" /ve /t REG_SZ /d "C:\path\file.dll" /f |
| Delete only default value | reg add "…\InprocServer32" /ve /f (sets to empty — not recommended) |
| Delete entire CLSID | reg delete "HKCU\Software\Classes\CLSID\GUID" /f |
| Export to backup | reg export "HKCU\Software\Classes\CLSID\GUID" backup.reg |
Many types of malware register a CLSID under HKCU\Software\Classes\CLSID to achieve persistence. For example:
If you did not intentionally create this CLSID, you should investigate it immediately. Use reg query to check the default value:
reg query "HKCU\Software\Classes\CLSID\86CA1AA0-34AA-4e8b-A509-50C905BAE2A2\InprocServer32" /ve
If the DLL path points to %TEMP%, C:\Users\Public, or an obscure folder, it is highly suspicious.
Your original command includes f ve which likely meant /f (force overwrite) and /ve (empty value name).
Let’s analyze the GUID bytes:
86CA1AA0-34AA-4e8b-A509-50C905BAE2A2
To identify its origin:
If the key exists and you don’t recognize the software, it’s a candidate for removal. To identify its origin:
Modifying the wrong CLSID can break:
Always export the registry key before making changes: If the key exists and you don’t recognize
reg export "HKCU\Software\Classes\CLSID\86CA1AA0-34AA-4e8b-A509-50C905BAE2A2" backup.reg
| Action | Command |
|--------|---------|
| View default value | reg query "HKCU\Software\Classes\CLSID\GUID\InprocServer32" /ve |
| Set DLL path | reg add "…\InprocServer32" /ve /t REG_SZ /d "C:\path\file.dll" /f |
| Delete only default value | reg add "…\InprocServer32" /ve /f (sets to empty — not recommended) |
| Delete entire CLSID | reg delete "HKCU\Software\Classes\CLSID\GUID" /f |
| Export to backup | reg export "HKCU\Software\Classes\CLSID\GUID" backup.reg |
Many types of malware register a CLSID under HKCU\Software\Classes\CLSID to achieve persistence. For example: or an obscure folder
If you did not intentionally create this CLSID, you should investigate it immediately. Use reg query to check the default value:
reg query "HKCU\Software\Classes\CLSID\86CA1AA0-34AA-4e8b-A509-50C905BAE2A2\InprocServer32" /ve
If the DLL path points to %TEMP%, C:\Users\Public, or an obscure folder, it is highly suspicious.
Your original command includes f ve which likely meant /f (force overwrite) and /ve (empty value name).
