<div>
Try to run scanpst.exe software to check for any errorrs inside PST file
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Put the file on a completely different computer and then use SCANPST on the different computer to look for errors.
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Tom -- you saw that i said that i tried scanpst? &nbsp;john, i will try my other system ...
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You are trying open from U drive so I assume this is network location.<br />
Try copy over this file to your local drive and try again
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This is known issue with Win 10 and Outlook, especially after upgrading Win 10. Problem is with corrupted system files that can be fixed with scanning:<br />
In elevated CMD run the command below<br />
<br />
sfc /scannow<br />
<br />
This command helped me to fix 2 identical cases
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Not an issue on my Windows 10 computer.
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I have not seen that on my own or client Windows 10 Pro computers. Outlook PST files are always useable by the user, and in my case I can transfer a PST file from my laptop to my desktop and open / import it on the desktop (different user name). <br />
<br />
Still, I am interested if Jim tries on another machine.
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for John and other users/experts that have not run across integrity levels before<br />

<blockquote>
Integrity levels define different levels of trustworthiness for applications running at different levels of access. Most applications in Windows Vista run at a standard user level of access at the medium integrity level
</blockquote>
 if you look at the image provided you will see that it is set to high integrity level. Integrity levels normally only apply to C:\ and %windir% in most usage<br />
<a href="https://msdn.microsoft.com/en-us/library/bb625963.aspx" rel="ugc nofollow">https://msdn.microsoft.com/en-us/library/bb625963.aspx</a>
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couldnt try other compujter ... only have Outlook on one. &nbsp;sfc didnt help. &nbsp;in the end i found a backup copy elsewhere and it ran fine. &nbsp;thanks for the help
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<div class="content wysiwyg-content">
Rebuilt Win 10 with new C drive. &nbsp;I have backup copies of my *.pst files. &nbsp;Installed Outlook but when I try to open any of the files the error message says: &nbsp;File Access Denied. &nbsp;You don't have permissions.<br />
<br />
I have played the Properties/Security screens; &nbsp;I have made new self &nbsp;the owner, I have full control -- as does every other Admin and user on the system [see attached fig]. &nbsp;I have verified that jm@imagemining.net is the current sign on, is administrator level. &nbsp;ALSO if i try to edit file permissions, all the Allow columns are checked AND grayed out.<br />
<br />
I tried the scanpst utility and its said it could not fix the file because the file is read only but properties does not say the file is read only.<br />
<br />
the archive/saved pst files i have were created when I had a local account on my Win 10 system. &nbsp;when i rebuilt windows now on my system it insisted on a network account. &nbsp;no more option for local. &nbsp;I have a feeling maybe this is a local/network account mismatch?<br />
<br />
<br />
I am very perplexed. &nbsp;How to fix this?<br />
<a href="https://filedb.experts-exchange.com/incoming/2017/12_w52/1216635/snip-1.PNG" target="_blank" class="file-inline" title="snip-1.PNG (168 KB)"><svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 512 512"><path d="M67.508 468.467c-58.005-58.013-58.016-151.92 0-209.943l225.011-225.04c44.643-44.645 117.279-44.645 161.92 0 44.743 44.749 44.753 117.186 0 161.944l-189.465 189.49c-31.41 31.413-82.518 31.412-113.926.001-31.479-31.482-31.49-82.453 0-113.944L311.51 110.491c4.687-4.687 12.286-4.687 16.972 0l16.967 16.971c4.685 4.686 4.685 12.283 0 16.969L184.983 304.917c-12.724 12.724-12.73 33.328 0 46.058 12.696 12.697 33.356 12.699 46.054-.001l189.465-189.489c25.987-25.989 25.994-68.06.001-94.056-25.931-25.934-68.119-25.932-94.049 0l-225.01 225.039c-39.249 39.252-39.258 102.795-.001 142.057 39.285 39.29 102.885 39.287 142.162-.028A739446.174 739446.174 0 0 1 439.497 238.49c4.686-4.687 12.282-4.684 16.969.004l16.967 16.971c4.685 4.686 4.689 12.279.004 16.965a755654.128 755654.128 0 0 0-195.881 195.996c-58.034 58.092-152.004 58.093-210.048.041z"/></svg>snip-1.PNG</a>
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snip-1.PNG

Rebuilt Win 10 with new C drive.  I have backup copies of my *.pst files.  Installed Outlook but when I try to open any of the files the error message says:  File Access Denied.  You don't have permissions.

I have played the Properties/Security screens;  I have made new self  the owner, I have full control -- as does every other Admin and user on the system [see attached fig].  I have verified that jm@imagemining.net is the current sign on, is administrator level.  ALSO if i try to edit file permissions, all the Allow columns are checked AND grayed out.

I tried the scanpst utility and its said it could not fix the file because the file is read only but properties does not say the file is read only.

the archive/saved pst files i have were created when I had a local account on my Win 10 system.  when i rebuilt windows now on my system it insisted on a network account.  no more option for local.  I have a feeling maybe this is a local/network account mismatch?


I am very perplexed.  How to fix this?

Outlook Fails to Open .pst -- issue with permissions or read only BUT I own the file

Windows 10 is a personal computer operating system featuring the "universal application architecture" (UAP); apps can be designed to run across multiple devices with nearly identical code, including PCs, tablets, smartphones, embedded systems, Xbox One, Surface Hub and HoloLens. Windows 10 also includes a virtual desktop system, a window and desktop management feature called Task View, the Microsoft Edge web browser, support for fingerprint and face recognition login, voice-based search (Cortana), new security features for enterprise environments, and DirectX 12 and WDDM 2.0 to improve the operating system's graphics capabilities for games.

Windows 10

Microsoft Outlook is a personal information manager from Microsoft, available as a part of the Microsoft Office suite. Although often used mainly as an email application, it also includes a calendar, task manager, contact manager, note-taker, journal, and web browser.