<b>QuickBooks won’t open</b><b> due to various reasons, such as a damaged company file, incorrect installation, outdated software, or a conflicting program. To troubleshoot, try the following: </b>
<b>(1) Restart your computer. </b>
<b>(2) Open QuickBooks using the “Run as Administrator” option.</b>
<b> (3) Open QuickBooks in Safe Mode. </b>
<b>(4) Repair your QuickBooks installation. </b>
<b>(5) Use the QuickBooks Tool Hub to diagnose and resolve issues.</b>