QuickBooks Error 1603: What is it and how to rectify it QuickBooks error 1603 pops up while installing QuickBooks or when you try to open it after you install QuickBooks. If your QuickBooks installation file needs to be appropriately downloaded or if it is corrupted or damaged. You might get the error code 1603 on your screen. It will restrict you from using QuickBooks. Getting away with the QuickBooks error 1603 is not a challenging task. We have some resolution methods to fix this error for you. Firstly, try to run QuickBooks install diagnostic tool to fix the error quickly, then go on with the following solutions if this does not work for you. CALL ON 1-855-856-0042 FOR ALL YOUR QUERIES RELATED TO THE QUICKBOOKS ERROR 1603. WE HAVE A TEAM OF QUICKBOOKS PROFESSIONALS. THEY PROVIDE YOU WITH SOLUTIONS TO FIX ERRORS LIKE THESE. WITH THEIR YEARS OF EXPERTISE IN QUICKBOOKS, THEY CAN HELP YOU FIX THIS ERROR IN NO TIME. Resolution methods for the QuickBooks error code 1603 Go step by step to follow the QuickBooks error code 1603. Method 1: Run QB install diagnostic tool Step 1: Download the QB tool hub •Start by downloading it •Open the download file and keep moving ahead with all the on-screen instructions •Once it is done, agree to the terms and conditions •Finish installing the tool hub Step 2: Now use QB install diagnostic tool •Open QB tool hub •Go to installation issues •Tap on QuickBooks to install diagnostic tool •Please wait for it and let the tool run for sometime •As it finishes, you can restart your pc If method one did not work well for you, please move to method 2. Method 2: Install QuickBooks in selective startup Step 1: Switch to selective startup. •Open the run command for that and press Windows + R •Type msconfig and then select ok •Go to the general tab and then click on selective startup and load system services •Now move to the services tab and then tap on hide all Microsoft services •Click on disable all •Uncheck “hide all of Microsoft services.” •Look for a windows installer •Then select ok •Restart your system Step 2: Reinstall QuickBooks •Go to the windows start menu •Look for the control panel •Tap on programs and features •Select your QuickBooks version from the list •Tap on the uninstall/change and then tap on remove •Press next •Now try installing QuickBooks again and see if the error 1603 has gone Always remember to the take regular backups of your data to the avoid data loss. Try these solutions above to the rectify the QuickBooks desktop 1603 error. Concluding it here Still, trying to the deal with the QuickBooks error 1603? We understand it might be frustrating for you to the cope with this error. But do not worry; we have our customer support team. You can ring them at 1-855-856-0042 and get answers to all your queries. Our QuickBooks ProAdvisor professionals will help in fixing this error and getting over it on time.