Before you spend a day downloading a 20 GB offline installer, consider these alternatives:
Allow users to download all required installation files for Visual Studio 2015 Update 3 (including updates, SDKs, and optional components) once, then install on multiple machines without internet access.
This is the most reliable method in 2025+. Download the bootstrapper from Microsoft’s archive (still active) and use it to download a full local cache.
Step 1: Download the bootstrapper
Grab the correct bootstrapper for your edition. These are old HTTPS links but still function:
Step 2: Generate the offline cache
Create a folder on a machine with internet (e.g., C:\VS2015_Offline). Open Command Prompt as Administrator and run: visual studio 2015 update 3 offline installer
vs_enterprise.exe --layout C:\VS2015_Offline --lang en-US
(Change vs_enterprise.exe to your edition)
This will download the entire installer (approx. 5–7 GB). It may take 20–40 minutes.
Step 3: Move to offline machine
Copy the C:\VS2015_Offline folder to your offline PC via USB drive or network share. Then run:
C:\VS2015_Offline\vs_enterprise.exe --noweb
⚠️ Troubleshooting: If you see "Setup block due to expired certificate," set your system clock back to 2018–2019, run the installer, then reset the clock. This is a known Authenticode timestamping issue.
If you manage to obtain an ISO from a third party, never run it without verifying integrity. Below are the official hashes for Visual Studio 2015 Update 3 (as provided by Microsoft in 2016 – verify with current documentation). Use Response Files or configuration XML if the
| Edition | File Name | SHA-1 Hash |
| :--- | :--- | :--- |
| Community (ISO) | vs2015.3.comm.iso | B8D5B0BFDB5D61D0ADF9431A648CF4ED15C0EB73 |
| Professional (ISO) | vs2015.3.pro.iso | C4C0F7D512E03B9B5D7008D7AFC9074549E461E1 |
| Enterprise (ISO) | vs2015.3.ent.iso | 4E191B2B18DAD01025051D4373D14668F76D553F |
| Build Tools | vs2015_buildtools.iso | F6D3B46FEF9481C6C95739563420A000DC37EF66 |
To check a hash on Windows: certutil -hashfile C:\path\to\your.iso SHA1