> For the complete documentation index, see [llms.txt](https://enercalc.com/docs/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://enercalc.com/docs/sel-faq/setup-and-licensing.md). # Setup & Licensing - [Installation](https://enercalc.com/docs/sel-faq/setup-and-licensing/installation.md): How to install ENERCALC SEL. - [Installation Guide](https://enercalc.com/docs/sel-faq/setup-and-licensing/installation/sel-installation-guide.md): Links to the ENERCALC SEL installation guide. - [Downloading the Installer](https://enercalc.com/docs/sel-faq/setup-and-licensing/installation/downloading-the-installation-p.md): How to download the ENERCALC SEL installer and locate it after download using your Product Control Code. - [Installation Limits](https://enercalc.com/docs/sel-faq/setup-and-licensing/installation/installation-limits.md): How many computers you may install ENERCALC SEL on under the license agreement. - [Moving ENERCALC SEL to a Different Computer](https://enercalc.com/docs/sel-faq/setup-and-licensing/installation/moving-my-software-to-a-differ.md): How to move ENERCALC SEL and its data files to a different computer. - [Install to a drive other than C](https://enercalc.com/docs/sel-faq/setup-and-licensing/installation/installing-to-a-drive-other-than-c-structural-engineering-library-installation-activation-lice-makin.md): How to install ENERCALC SEL on a drive other than C using the installer's command-line options. - [Activation & Licensing](https://enercalc.com/docs/sel-faq/setup-and-licensing/activation-and-licensing.md): How ENERCALC SEL activation and licensing work. - [Activation Basics](https://enercalc.com/docs/sel-faq/setup-and-licensing/activation-and-licensing/how-it-works.md): Overview of how ENERCALC SEL installation, activation, and licensing work frequently asked questions. - [Glossary of Installation, Activation & Licensing Terms](https://enercalc.com/docs/sel-faq/setup-and-licensing/activation-and-licensing/how-it-works/glossary-of-installation-acti.md): Definitions of key ENERCALC SEL installation, activation, and licensing terms like seat, pool, PCC, and update. - [Activation Guide](https://enercalc.com/docs/sel-faq/setup-and-licensing/activation-and-licensing/how-it-works/activation-guide.md): Links to the ENERCALC SEL activation guide. - [Activation Limits](https://enercalc.com/docs/sel-faq/setup-and-licensing/activation-and-licensing/how-it-works/copy-protection.md): How ENERCALC SEL enforces concurrent activation limits based on the number of seats you purchased. - [Internet Activation System](https://enercalc.com/docs/sel-faq/setup-and-licensing/activation-and-licensing/how-it-works/internet-activation-systems.md): How ENERCALC's Internet Activation system grants permission to run the SEL and shares license seats between computers. - [Manual Activation](https://enercalc.com/docs/sel-faq/setup-and-licensing/activation-and-licensing/how-it-works/manual-activation-codes.md): How Manual Activation works in ENERCALC SEL and why machine-specific codes are a last resort without license sharing. - [Activation Options](https://enercalc.com/docs/sel-faq/setup-and-licensing/activation-and-licensing/how-it-works/the-spectrum-of-activation-opt.md): Comparing ENERCALC SEL Internet Activation and Manual Activation, including when to use each option. - [Share your seats between computers](https://enercalc.com/docs/sel-faq/setup-and-licensing/activation-and-licensing/how-it-works/sharing-a-single-license-betwe.md): How to share Internet Activated ENERCALC SEL seats among multiple computers using automatic activation and deactivation. - [Connecting to the Internet Activation Server](https://enercalc.com/docs/sel-faq/setup-and-licensing/activation-and-licensing/how-it-works/connecting-to-the-internet-act.md): How ENERCALC SEL connects to the license activation server, and where to find the domains and port to allow through a firewall. - [Making Changes](https://enercalc.com/docs/sel-faq/setup-and-licensing/activation-and-licensing/making-changes.md): Overview of making changes to your ENERCALC SEL installation frequently asked questions. - [Changing the Activation Type](https://enercalc.com/docs/sel-faq/setup-and-licensing/activation-and-licensing/making-changes/changing-the-activation-type.md): How to change your ENERCALC SEL activation type between Automatic and Indefinite by deactivating and reactivating. - [Moving the Activation to a Different Computer](https://enercalc.com/docs/sel-faq/setup-and-licensing/activation-and-licensing/making-changes/moving-the-activation-to-a-dif.md): How to move an ENERCALC license activation between computers using Internet Deactivate and Internet Activate. - ["Checking Out" an Activation](https://enercalc.com/docs/sel-faq/setup-and-licensing/activation-and-licensing/making-changes/can-we-check-out-licenses.md): What it means to check out a license activation and how it keeps SEL activated without continuous internet access. - [Changing Licensee Name](https://enercalc.com/docs/sel-faq/setup-and-licensing/activation-and-licensing/making-changes/changing-licensee-name.md): How to change the Licensee name shown on screens and printouts by obtaining a new Product Control Code. - [Updating your PCC Automatically](https://enercalc.com/docs/sel-faq/setup-and-licensing/activation-and-licensing/updating-your-pcc.md): Whether ENERCALC automatically updates your Product Control Code when your subscription renews and what to do if it cannot. - [Updating your PCC Manually](https://enercalc.com/docs/sel-faq/setup-and-licensing/activation-and-licensing/updating-your-pcc-2.md): How to manually update your ENERCALC SEL Product Control Code after a company name change or correction. - [Software Updates](https://enercalc.com/docs/sel-faq/setup-and-licensing/software-updates.md): How to update ENERCALC SEL and its Program Control Center. - [Web Update System](https://enercalc.com/docs/sel-faq/setup-and-licensing/software-updates/web-update-system.md): How to check for ENERCALC SEL updates automatically or manually, get email alerts, and read the build number. - [Web Updates](https://enercalc.com/docs/sel-faq/setup-and-licensing/software-updates/web-updates.md): How the ENERCALC SEL Web Update feature checks for and installs newer builds, and the difference between discoverable and non-discoverable updates. - [Can't Access the Latest Update](https://enercalc.com/docs/sel-faq/setup-and-licensing/software-updates/cant-access-the-latest-update.md): Why SEL won't let you install the latest update even with active support, and how a new PCC fixes it. - [Keeping your Installations Up-to-Date](https://enercalc.com/docs/sel-faq/setup-and-licensing/software-updates/keeping-your-installations-up.md): Why multiple ENERCALC SEL installations can end up running different versions and how updates get out of sync. - [IT Administration & Automation](https://enercalc.com/docs/sel-faq/setup-and-licensing/it-administration.md): How administrators install, activate, and update ENERCALC SEL. - [Install for Many Users](https://enercalc.com/docs/sel-faq/setup-and-licensing/it-administration/install-for-many-users.md): Why ENERCALC SEL must be installed locally on each computer rather than run from a server over a network. - [Proxy Settings](https://enercalc.com/docs/sel-faq/setup-and-licensing/it-administration/proxy-settings.md): How to configure proxy server settings and whitelist enercalc.net for ENERCALC SEL activation. - [Automating Installation](https://enercalc.com/docs/sel-faq/setup-and-licensing/it-administration/automating-activation-processe.md): How to automate unattended SEL installation across machines using SCCM, Intune, registry settings, and required redistributables. - [Automating the Process of Updating Multiple Installations](https://enercalc.com/docs/sel-faq/setup-and-licensing/it-administration/automating-activation-processe-2.md): How to automate updating multiple SEL installations using SCCM, MECM, Intune, or Winget command line parameters. - [Automating the Process of Updating Multiple Installations using SYSTEM](https://enercalc.com/docs/sel-faq/setup-and-licensing/it-administration/automating-updates-with-system.md): How to automate updating multiple ENERCALC SEL installations using SYSTEM, Winget command-line parameters, and InnoSetup logs. - [Automating the Process of Updating the PCC on Multiple Installations](https://enercalc.com/docs/sel-faq/setup-and-licensing/it-administration/automating-activation-processe-3.md): How to automate PCC updates across multiple SEL installations using the registry batch updater. - [Advanced Installation Info for IT Pros](https://enercalc.com/docs/sel-faq/setup-and-licensing/it-administration/advanced-installation-info-for.md): Admin rights, registry locations, and Winget/InnoSetup command-line options for IT pros installing ENERCALC SEL. - [Force all installations to use the "Automatic Activation/Deactivation"](https://enercalc.com/docs/sel-faq/setup-and-licensing/it-administration/how-can-we-force-all-installat.md): How to force all installations to use Automatic Activation and hide the option to change it via a registry key. - [Having Build 20 Installed Concurrently with Older Versions](https://enercalc.com/docs/sel-faq/setup-and-licensing/it-administration/having-build-20-installed-conc.md): Whether ENERCALC SEL Build 20 can be installed alongside older versions on the same computer. - [Network Communication Requirements](https://enercalc.com/docs/sel-faq/setup-and-licensing/it-administration/understanding-sels-communicat.md): What outbound and inbound network connections ENERCALC SEL makes for licensing, cloud storage, and settings sync. - [Turning Off SEL Sync](https://enercalc.com/docs/sel-faq/setup-and-licensing/it-administration/turning-off-sel-sync.md): How to disable SEL Sync (Hosted Storage) enterprise-wide using a registry setting. - [Troubleshooting](https://enercalc.com/docs/sel-faq/setup-and-licensing/troubleshooting.md): Overview of ENERCALC SEL installation, activation, and licensing troubleshooting frequently asked questions. - [Installation and startup problems](https://enercalc.com/docs/sel-faq/setup-and-licensing/troubleshooting/installation-and-startup-problems.md) - [Can't Run SEL from Another Computer](https://enercalc.com/docs/sel-faq/setup-and-licensing/troubleshooting/installation-and-startup-problems/running-sel-from-another-compu.md): Why you cannot install ENERCALC SEL on one computer and run it remotely via a shortcut from another. - [Could Not Initialize](https://enercalc.com/docs/sel-faq/setup-and-licensing/troubleshooting/installation-and-startup-problems/could-not-initialize.md): What a Could Not Initialize startup message means and how to re-register ENERCALC's ActiveX components. - [Fixing the Startup Error (Missing DLL / SSL Crash)](https://enercalc.com/docs/sel-faq/setup-and-licensing/troubleshooting/installation-and-startup-problems/fixing-the-startup-error-miss.md): How to fix the ENERCALC startup crash caused by a missing or wrong vcruntime140.dll using a custom shortcut. - [Hard Drive Crashes and Other Nasty Occurrences](https://enercalc.com/docs/sel-faq/setup-and-licensing/troubleshooting/installation-and-startup-problems/hard-drive-crashes-and-other-n.md): What to do when a hard drive crash, theft, or other mishap prevents you from deactivating your license. - [Target Directory is not Writable](https://enercalc.com/docs/sel-faq/setup-and-licensing/troubleshooting/installation-and-startup-problems/installation-failure.md): How to fix an installation failure reporting that target directories are not writable using Windows notification settings. - [Activation and licensing problems](https://enercalc.com/docs/sel-faq/setup-and-licensing/troubleshooting/activation-and-licensing-problems.md) - [Difficulty with Internet Activation](https://enercalc.com/docs/sel-faq/setup-and-licensing/troubleshooting/activation-and-licensing-problems/difficulty-with-internet-activ.md): How to troubleshoot ENERCALC SEL Internet Activation problems caused by antivirus, firewalls, VPNs, and certificate inspection. - [Message Says Software is Already Activated](https://enercalc.com/docs/sel-faq/setup-and-licensing/troubleshooting/activation-and-licensing-problems/message-says-software-is-alrea.md): What the software-is-already-activated message means and how to resolve it under the old activation system. - [My Indefinite Activation seems to go away on occasion](https://enercalc.com/docs/sel-faq/setup-and-licensing/troubleshooting/activation-and-licensing-problems/myindefiniteactivationseemstogoawayonoccasion.md): Why an Indefinite activation occasionally prompts you to reactivate after an abnormal program exit. - [My PCC is Expired](https://enercalc.com/docs/sel-faq/setup-and-licensing/troubleshooting/activation-and-licensing-problems/my-pcc-is-expired.md): What to do when the installer says your Product Control Code is expired and how to request a current one. - [Server Can't be Reached](https://enercalc.com/docs/sel-faq/setup-and-licensing/troubleshooting/activation-and-licensing-problems/server-cant-be-reached.md): What to do when Internet Activate reports the activation server cannot be reached, including firewall and domain checks. - [Network, security, and IT environments](https://enercalc.com/docs/sel-faq/setup-and-licensing/troubleshooting/network-security-and-it-environments.md) - [Disabling Proxy](https://enercalc.com/docs/sel-faq/setup-and-licensing/troubleshooting/network-security-and-it-environments/disabling-proxy.md): How to disable ENERCALC SEL's use of the Windows proxy via a registry value or command-line switch. - [Determining the currently installed build from a registry key](https://enercalc.com/docs/sel-faq/setup-and-licensing/troubleshooting/network-security-and-it-environments/determining-the-currently-inst.md): How to find the currently installed ENERCALC SEL build by reading a Windows registry key. - [SentinelOne - Known Conflict](https://enercalc.com/docs/sel-faq/setup-and-licensing/troubleshooting/network-security-and-it-environments/sentinelone-known-conflict.md): How to resolve ENERCALC SEL launch and activation failures caused by SentinelOne by adding the right exclusion. - [SSL Remote Certificate Failed Verification](https://enercalc.com/docs/sel-faq/setup-and-licensing/troubleshooting/network-security-and-it-environments/ssl-remote-certificate-verific.md): How to resolve the SSL Remote Certificate Failed Verification error during ENERCALC SEL activation. - [Transport Layer Security (TLS)](https://enercalc.com/docs/sel-faq/setup-and-licensing/troubleshooting/network-security-and-it-environments/difficulty-with-internet-activ-2.md): Whether Microsoft's retirement of TLS 1.0 and 1.1 affects ENERCALC's internet activation system. - [Internet Activation Tips for IT Pros on Particularly Difficult Situations](https://enercalc.com/docs/sel-faq/setup-and-licensing/troubleshooting/network-security-and-it-environments/internet-activation-tips-for-i.md) - [Application and display problems](https://enercalc.com/docs/sel-faq/setup-and-licensing/troubleshooting/application-and-display-problems.md) - [Program disappears when I add a calculation](https://enercalc.com/docs/sel-faq/setup-and-licensing/troubleshooting/application-and-display-problems/new.md): How to fix ENERCALC SEL disappearing when adding a calculation by adjusting NVIDIA GPU performance settings. - [Screen Resolution in Cloud Version](https://enercalc.com/docs/sel-faq/setup-and-licensing/troubleshooting/application-and-display-problems/screen-resolution-in-cloud-ver.md): How to adjust the screen resolution in the ENERCALC SEL cloud version. - [Unresponsive or Off-Screen Window](https://enercalc.com/docs/sel-faq/setup-and-licensing/troubleshooting/application-and-display-problems/unresponsive-off-screen-window.md): What to do when ENERCALC SEL launches but won't respond because its activation window has opened off screen, and how to reset the saved window position. - [Diagnostics and support](https://enercalc.com/docs/sel-faq/setup-and-licensing/troubleshooting/diagnostics-and-support.md) - [Using DebugView](https://enercalc.com/docs/sel-faq/setup-and-licensing/troubleshooting/diagnostics-and-support/using-debugview.md): How to set up and use DebugView to capture license activation logs for ENERCALC tech support troubleshooting. --- # Agent Instructions This documentation is published with GitBook. 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