Medium Operating Systems ✓ Solution Verified by Community (0+ upvotes)

Error Code error-is-subst-path — Windows 11

ERROR_IS_SUBST_PATH = 146

65% úspěšnost
👥 0+ uživatelů ověřilo
📅 Aktualizováno: 2026-08-12
⏱️ 15 min čtení
Oprava založena na komunitních zprávách a expertní analýze. Naposledy ověřeno: 2026-08-12 · Jak ověřujeme opravy
Error Codeerror-is-subst-path
Affected SystemWindows 11 (Microsoft)
DifficultyMedium
Estimated Time15 min
Requires Admin Rights⚠️ Yes

Postup řešení

  1. 1 Press Windows key + R to open the Run dialog. Type 'cmd' and press Ctrl+Shift+Enter to open Command Prompt as administrator. This gives you the necessary permissions to view and manage drive mappings.
  2. 2 In the Command Prompt, type 'subst' and press Enter. This lists all current virtual drives. Look for the drive letter that is causing the error. If you see a mapping, note the target path. If no mapping appears, the drive was not recreated after reboot, which is the root cause.
  3. 3 If the mapping is missing, recreate it. For example, if the error mentions drive 'X:' and the original folder was 'C:\MyFolder', type 'subst X: C:\MyFolder' and press Enter. This re-establishes the virtual drive so programs can access the path again.
  4. 4 If the mapping exists but the target folder is missing or inaccessible, check that the folder path is correct. Use 'dir C:\MyFolder' to verify the folder exists. If not, you may need to restore it from backup or change the mapping to a valid folder.
  5. 5 After fixing the mapping, try launching the program again. If it still fails, restart your computer to ensure all services and mappings are refreshed.

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