diff --git a/os/mac/Compression.md b/os/mac/Compression.md
index 1a934d95..53af8416 100644
--- a/os/mac/Compression.md
+++ b/os/mac/Compression.md
@@ -2,7 +2,19 @@
 
 
 Zip Split Files
-https://smallbusiness.chron.com/split-zip-files-os-x-56155.html
+
 Splitting already zip file into 100MB files.
+[Source](https://smallbusiness.chron.com/split-zip-files-os-x-56155.html)
+
+```sh
+zip MyArchive.zip --out SplitArchive.zip -s 100m
+```
+
+## Zip Password protected
+
+
+```sh
+zip -er file_name_output /Users/macStudio_Player.txt /Users/no3_5.dmg
+```
 
-> zip MyArchive.zip --out SplitArchive.zip -s 100m
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+[article | imore](https://www.imore.com/how-create-and-password-protect-zip-file-macos)
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diff --git a/os/mac/README_mac.md b/os/mac/README_mac.md
index e8af95d6..4e0caef3 100644
--- a/os/mac/README_mac.md
+++ b/os/mac/README_mac.md
@@ -12,6 +12,8 @@
 
 [[disable_gatekeeper]]
 
+[disk_utility](disk_utility.md)
+
 [fresh_install](fresh_install.md)
 
 [[hidden_files]]
diff --git a/os/mac/codesign_app.md b/os/mac/codesign_app.md
index f3b238d4..842e237d 100644
--- a/os/mac/codesign_app.md
+++ b/os/mac/codesign_app.md
@@ -7,6 +7,19 @@ Apple removed app's certificate, so the app will crash. The current solution is
 
 Run in Terminal
 
-> codesign --force --deep --sign - /Applications/name.app
+```sh
+codesign --force --deep --sign - /Applications/name.app
 
-You could use 'sudo' for escalated permissions.
\ No newline at end of file
+```
+You could use 'sudo' for escalated permissions.
+
+
+## Cannot Open the program
+
+If the error “Cannot open the program” appears, enter in the terminal (the application should be in the “Programs” folder):
+
+```sh
+xattr -cr /Applications/AppName.app && codesign --force --deep --sign - /Applications/AppName.app
+```
+
+The update has been completed. Please uninstall and reinstall completely.
\ No newline at end of file
diff --git a/os/mac/disk_utility.md b/os/mac/disk_utility.md
new file mode 100644
index 00000000..054636c0
--- /dev/null
+++ b/os/mac/disk_utility.md
@@ -0,0 +1,78 @@
+
+
+## NTFS
+
+
+Mounting NTFS 
+
+Utilizing app called [Mounty](https://www.mounty.app/)
+
+```sh
+brew install --cask macfuse
+brew install gromgit/fuse/ntfs-3g-mac
+brew install --cask mounty
+```
+
+Had to enable / disable system extensions for macOS.
+
+
+## Storage
+
+
+You can check why your macOS is low on storage.
+
+Few good links about macOS caching about everything in its system directory.
+One single Xcode installation can go up to 60gigs of storage. This is pretty bad for apple hardware where Memory costs like Caviar be it Volatile (RAM, L1.*x Cache) or Non Volatile (Disk / SSD / ROM).
+
+Luckily apple provides us two options
+
+- One is there System Preferences -> Storage with some option to delete unused storage and cleanup extra support libraries.
+- It tries to upsell iCloud Storage packages to offload mac / device storage to Cloud. Seamless integration or anti competitive - forced planned obsolescence type of stuff. You can be the judge.
+
+
+I recommend few things
+
+- [Daisy disk](https://daisydiskapp.com/)
+- [Clean my Mac](os/mac/disk_utility#Clean%20my%20Mac) 
+- Terminal commands 
+- Disable Time Machine
+- Delete old iOS / iPhone backups
+- Enable [hidden_files](hidden_files.md)
+
+### Support Files
+
+Delete Phone old OS device support files, for example if you had an iOS / iPadOS / Apple TV / Vision Pro or any apple development device on a specific OS and then you upgraded from iOS 16.4 -> iOS 17.4 then Xcode or macOS has old iOS 16.4 device support files for Obj-C / Swift Headers or just for debugging symbols. That's why every time you connect a new device to xcode -> it performs this process of `Preparring for Device support`
+
+Turns out if you have like 4 - 7 development devices for one Xcode the storage support files goes up to 20Gigs+ usually each device + OS combo accounting for 2 - 4 gigs.
+You can delete them in `Apple -> System preferences app -> Developer -> Delete Device Support Files`
+
+
+### Terminal Commands
+
+`du` (disk usage) and `df` (disk free) commands
+
+
+```sh
+df -h | grep Gi
+
+# Output
+# /System/Volumes/Data 124Gigs 
+```
+
+This grabs space occupied by `Gigs` and then you can sort that data
+
+```sh
+du -h /System/Volumes/Data | grep "G\t" | sort
+```
+
+and if you want breakdown of the folders / directory use
+
+```sh
+du -h -d 1
+```
+
+### Clean my Mac
+
+ [Clean my Mac - MacPaw](https://cleanmymac.com/)
+ Just make sure to disable everything else like analytics, full disk scanning, protection stuff etc & auto login. I usually use this app once in 30 days. 
+ 
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diff --git a/os/mac/mac_commands.md b/os/mac/mac_commands.md
index 64fd810e..dd3d8d28 100644
--- a/os/mac/mac_commands.md
+++ b/os/mac/mac_commands.md
@@ -18,6 +18,12 @@ For checking your reboots
 last reboot
 ```
 
+## Keeping mac Alive
+
+```sh
+caffeinate
+```
+
 
 ## Checking Mac Application Bundle ID
 
diff --git a/os/mac/mac_os_quirks.md b/os/mac/mac_os_quirks.md
index cdc31239..fac3bcf5 100644
--- a/os/mac/mac_os_quirks.md
+++ b/os/mac/mac_os_quirks.md
@@ -38,4 +38,23 @@ Enter your password to allow this.
 sudo chown -R $USER /Applications/Slack.app
 ```
 
-Or if you 
\ No newline at end of file
+Or if you 
+
+
+
+## Search with Default browser
+
+
+Add automator / workflow and set it in default browser
+[Stack Exchange | MacOS - system preferences](https://apple.stackexchange.com/questions/10999/search-in-google-always-open-safari-instead-of-default-browser) 
+
+
+Create a workflow for automator
+
+[super user | create a shortcut for search with google](https://superuser.com/questions/369934/mac-os-x-lion-chrome-shortcut-for-search-with-google) 
+
+maybe try this app but i didn't fully config it to check whether it works perfectly
+[Velja macOS app](https://apps.apple.com/ca/app/velja/id1607635845?mt=12)
+
+Location of Automator script.
+Automator Quick Actions are saved into /Users/username/Library/Services. By default, Workflows are saved in the **Workflows folder in the local library**
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