Error 27300 Error Installing Driver Klim6sysx64 Exclusive 'link'

Run the tool, select the product you were trying to install, and click .

Sometimes the driver is not in System32\drivers but is staged in the driver store.

The klim6.sys file is an NDIS (Network Driver Interface Specification) filter driver. Kaspersky uses it to intercept and scan network traffic for malicious activity before it reaches your operating system. When the Windows Network Setup Service or Cryptographic subsystem blocks this driver from locking onto your network adapters exclusively, the installer crashes with Error 27300. The main triggers for this failure include:

Press Win + R , type regedit , press Enter. Step 2: Navigate to: HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services Step 3: Look for a key named klim6 . If found, right-click and delete it. Step 4: Also check: HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\Class\4d36e967-e325-11ce-bfc1-08002be10318 (That’s the storage volume class). Remove any UpperFilters or LowerFilters entries referencing klim6 . Step 5: Reboot. error 27300 error installing driver klim6sysx64 exclusive

Open the and navigate to Programs and Features .

The most common cause of this error is a corrupted previous installation. Kaspersky provides a dedicated tool to remove these remnants.

Delete everything in this folder (skip files that are currently "in use"). Run the tool, select the product you were

After the PC restarts, go to > Advanced options > Startup Settings > Restart .

Navigate to: HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\Network Look for a value named MaxNumFilters .

Error 27300 (specifically involving the driver klim6.sys_x64_70_exclusive Kaspersky uses it to intercept and scan network

The klim6sysx64.sys file in the Windows System32 directory is corrupted or locked.

If you are still struggling, try installing the Kaspersky application in to prevent other drivers from interfering.