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Add an exclusion to Windows Security

If Windows Security has incorrectly flagged SigmaXL as untrusted, SigmaXL can be added to Windows Microsoft Defender's exclusions list.

A

The most common symptom of

this

SigmaXL being blocked by security software is the following error

message when starting SigmaXL

:

Image Modified

Warning

title	Administrator Privileges are Required

Note that you must be a system administrator to complete the steps below.

Panel

bgColor	#F7F9FF

Expand

title	Windows 10 Instructions

Click (1) Windows Security > (2) Image RemovedImage Added Virus & threat protection:

Tip
In Image RemovedImage Added Virus & threat protection settings, select Image Added Protection history to view the blocked actions: Image Added Each item in the list can be clicked to expand and to review if SigmaXL/Excel is being blocked by Windows security settings:

Under Image Added Virus & threat protection settings, select Manage settings:
Scroll down to Exclusions and click Add or remove exclusions:
Click (1) + Add an exclusion, and select (2) FileFolder:
Image Removed
Image Added
Navigate to the SigmaXL folder for your installed bit-version, (1) single-click the folder
, select SigmaXL.xlam and click Open.
to highlight it, and click the (2) Select Folder button:

For 32-bit: C:\Program Files (x86)\SigmaXL
\{version}\SigmaXL.xlam
:
Image Removed

Image Added

For 64-bit: C:\Program Files
\SigmaXL\{version}
\SigmaXL
.xlam
:
Image Removed

Image Added
SigmaXL is now being excluded from Windows Defender Defender.

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bgColor	#F7F9FF

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title	Windows 11 Instructions

Click Image Added Start Image Removed > Settings Image Removed.
Click Privacy & security Image Removed:
Image RemovedImage Added Settings.
Click (1) Privacy & security > (2) Image Added Windows Security:

Image Added

In Windows Security, click Image Added Virus & threat protection:

Image Added

Tip
In Image Added Virus & threat protection settings, select Image Added Protection history to view the blocked actions: Image Added Each item in the list can be clicked to expand and to review if SigmaXL/Excel is being blocked by Windows security settings: Image Added

Under Image Added Virus & threat protection settings, select Manage settings:

Image Added
Scroll down to Exclusions and select Add or remove exclusions:

Image Added
Click (1) + Add an Exclusion and select (2) Folder:

Image Added
Navigate to the SigmaXL folder for your installed bit-version, (1) single-click the folder to highlight it, and click the (2) Select Folder button:

For 32-bit: C:\Program Files (x86)\SigmaXL:

Image Added

For 64-bit: C:\Program Files\SigmaXL:

Image Added
SigmaXL is now being excluded from Windows Defender.