Change My User Acounts Back From ..Uers / User ... To DASHA

Good afternoon can I get some help pleaseI had to get some work done on my hard drive and ever since' I have this problem

This used to read programs /..... UserS \ Dasha\ which is my log-In and standard administrator account the Pc's repairs or somthing has changed it is no longer the default account
How can I change it back to......Users\Dasha> and regain all the permission's I have seemed to have lost

Kaspersky keeps asking if I want to Change the Settings of this Program

I have included a screen shot thanks for any help Dasha

Thanks for the tip I will go over and have a look at that Cheers Dasha:)

Good-morning Brink, I cannot find the User acc I want to show as Dasha? Dasha is In the uac but the user is not and in std cmd it's C:User S \ User : User being the name I believe should be as Dasha

in uac there is only 2 accounts Dasha Admin and SelwynBlondie local

Dasha Is in the UAC as Administrator with SelwynBlonde but there is no main administrator account there thats my problem in explorer or anywhere it's; C:User S \ User should be Dasha

so I'm not sure what to do Brink what do you suggest?