File is Unlocked

[Nilanjan323378885l6r]

I used to use Ps in a different MS account. Yesterday I changed the account but using the same PC. I imported all my brushes, and have done all the setting. But when I'm working on a file, I wanted to save it. Then its showing this. Anyone please help me! I'm working on an important project, but can't save it. I think its because I changed my account since I never faced this issue before on my previous account. Please help me out! 

[Myra Ferguson]

According to the following post, it was anti-virus software that caused the problem. They said when they uninstalled Avast, they could save:

• https://community.adobe.com/t5/photoshop-ecosystem-discussions/error-could-not-save-the-file-because...

[Nilanjan323378885l6r]

No ma'am currently I'm not using any Anti Virus s/w. It was just expired some days ago.