@Mehul Haria
Hi,
Windows 10, version 1803 (the April 2018 Update) Home and Pro editions have reached end of service.
Also KB4537762 has been replaced by KB5001634.
https://support.microsoft.com/en-us/topic/march-18-2021-kb5001634-os-build-17134-2090-out-of-band-87d39f77-26ad-41ab-b670-8101820168b6
I suggest you use Media creation tool or ISO file to upgrade to the latest version.
Please download Media Creation Tool from the link below and select Upgrade this PC at the first screen:
https://www.microsoft.com/en-us/software-download/windows10
This will save your files and apps while bringing you up to the latest version by the most stable method. It will also bring all of your Updates current and solve most problems since it reinstalls Windows.
Hope above information can help you.
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