If macOS no longer supports 32-bit programs, you can try the following methods: 1. Use a virtual machine (such as ParallelsDesktop or VMwareFusion to install the old version of macOS to run 32-bit programs. You need to prepare a Mac, virtual machine software and legacy system image with good performance; 2. Find a 64-bit updated version of the software or use alternative software, such as using GIMP or AffinityPhoto instead of the old version of Photoshop; 3. Install Windows through BootCamp on Intel Mac to run 32-bit applications, but the operation is complicated and the driver may be incompatible; 4. If the software is no longer maintained, you can only keep the old Mac running. Each method has its own advantages and disadvantages, and should be based on the technology

To share files between two Macs on the same network, first make sure that the two devices are connected to the same LAN, then enable file sharing on the host, set shared folders and access permissions, and then connect from another Mac through the access sidebar or manually enter the SMB address, and finally you can browse, copy or transfer files. Common problems include waiting or restarting the network when the device cannot be discovered. If the permissions are incorrect, you need to check the username, password and sharing settings. If the connection fails, you can try the SMB address. If the firewall blocks, you can temporarily close the test.

PrivateRelay is a privacy protection feature launched by Apple that hides user identities and browsing content through encryption and segmentation of network requests. The specific operation is divided into two steps: one is to encrypt the data and forward it through two relay servers. The first is to know the IP and the second is to know the content that does not know the user's identity; the second is to realize privacy isolation, and even Apple cannot obtain the complete record. Supported devices must meet: iOS15/iPadOS15/macOSMonterey and above systems, log in to AppleID and subscribe to iCloud services, and are only available for Safari browser. Its benefits include preventing ISP tracking, no additional settings are required, default activation, etc.; the limitation is that it does not support the wall surfing and only protects Safar.

To adjust the Dock on Mac according to usage habits to improve efficiency, you can follow the following steps: 1. Adjust the size and position: Go to "System Settings" > "Desktop and Dock", check "Automatic Show and Hide Dock", slide the bar to adjust the icon size; select the left, bottom or right place in "Dock Position". 2. Add or remove apps and folders: Drag the app from "Applications" to the Dock, and drag out the outside of the icon to remove the item. 3. Customize behavior and animation effects: Set click icon to display recent documents, window thumbnail previews, and use dividers or empty launchers to improve organization and quickly return to the desktop. Turning on the auto-hide function helps save screen space and make your work more focused.

iCloudDrive's Desktop & Documents folder feature enables cross-device synchronization by migrating desktop and document folders to iCloud. 1. After turning on, the system automatically moves the file to iCloudDrive to maintain local display and access experience; 2. When connected to the network, the file can be edited and synchronized to other devices at any time; 3. When Mac storage space is insufficient, the files will "slim down" with great use, only icons and names are retained, and the content will be downloaded as needed; 4. Set the path to macOS settings→AppleID→iCloud→check "iCloudDrive"→click "Options" and enable "Desktop and Document Folder"; 5. Notes include: First uploading requires stable

Resetting PRAM/NVRAM can solve problems such as Mac startup failure, sound or display settings, etc. It is suitable for Mac with Intel processors. PRAM and NVRAM are small memory areas that store system settings, such as volume, resolution, and boot disk selection, which will cause system exceptions when errors occur. 1. Turn off the Mac; 2. Press and hold the Option Command P R keys; 3. Turn on the power and hold it continuously for about 20 seconds until you hear the second startup sound or see the Apple logo disappear and then release it. MacBook Pro with TouchBar can directly click the "Reset" button or continue to use the key combination. It is recommended to encounter boot disk identification problems, resolution errors, volume recovery default, fan rotation

When deleting a file, simply throwing it into the wastebasket and clearing it will not completely clear the data. The default deletion operation of macOS only removes the file index, and the actual data remains on the hard disk until it is overwritten by new data. For sensitive information, a safer method of deletion is required. 1. Use the "Safe Delete" terminal command srmfilename, suitable for mechanical hard disks (HDD); 2. Use "Disk Tool" to erase blank space and clean up deleted but residual data; 3. Enable FileVault encryption to make ordinary deletion equivalent to safe deletion; 4. Use third-party tools such as EraserDrop to perform convenient and secure deletion. Choose the appropriate method according to the type of hard disk and privacy needs to effectively prevent data recovery.

Mac users may confuse MissionControl with StageManager when managing multiple windows. The former provides a full view view, which supports creating and switching desktops, window grouping and dragging operations, which is suitable for users who need to view multiple tasks at the same time; the latter focuses on a single application, and other applications are displayed in sidebar thumbnails, which is suitable for scenes that reduce visual interference and focus on the current task. The two can coexist and use according to requirements: 1. MissionControl provides complete window and desktop management functions; 2. StageManager simplifies the interface and guides focus on current applications; 3. Users can choose or use both modes according to their working methods.