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Repair broken registry key RRS feed

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    Hello

    Windows 8.1

    While istalling some applications(absolutely not matters which) I got failres and such log:

    [004C:036C][2016-07-24T01:15:49]i372: Session end, registration key: SOFTWARE\Microsoft\Windows\CurrentVersion\Uninstall\{79b486b9-c5f0-4096-a00c-8351f59587c2}, resume: ARP, restart: None, disable resume: No
[004C:036C][2016-07-24T01:15:49]i371: Updating session, registration key: SOFTWARE\Microsoft\Windows\CurrentVersion\Uninstall\{79b486b9-c5f0-4096-a00c-8351f59587c2}, resume: ARP, restart initiated: No, disable resume: No
[09A0:06B0][2016-07-24T01:15:49]i000: MUX:  Apply Complete: Disk Space Used in bytes for Installation:  MaxAppDrive: 0  MaxSysDrive: 415240192  AppDrive: 0  SysDrive: 0
[09A0:06B0][2016-07-24T01:15:49]i000: MUX:  Free Disk Space after install:  SystemDrive C:\ 19401515008 bytes  AppDrive C:\ 19401515008 bytes
[09A0:06B0][2016-07-24T01:15:49]i000: MUX:  Go to Finished page.
[09A0:06B0][2016-07-24T01:15:49]i000: MUX:  Watson Bucketting Parameters
[09A0:06B0][2016-07-24T01:15:49]i000: MUX:  P1 - vs_community
[09A0:06B0][2016-07-24T01:15:49]i000: MUX:  P2 - 14.0.25420.01.00
[09A0:06B0][2016-07-24T01:15:49]i000: MUX:  P3 - 14.0.25420
[09A0:06B0][2016-07-24T01:15:49]i000: MUX:  P4 - Install
[09A0:06B0][2016-07-24T01:15:49]i000: MUX:  P5 - vsbsln_neu_28
[09A0:06B0][2016-07-24T01:15:49]i000: MUX:  P6 - Install
[09A0:06B0][2016-07-24T01:15:49]i000: MUX:  P7 - 0x80070643
[09A0:06B0][2016-07-24T01:15:49]i000: MUX:  P8 - Error 1402.Could not open key: UNKNOWN\Components\324CA63DEADCBC143B7E2C51F1B12B61\9941930679BB7CF3F971B25F06CD2E13.   Verify that you have sufficient access to that key, or contact your support personnel.
[09A0:06B0][2016-07-24T01:15:49]i000: MUX:  P9 - 
[09A0:06B0][2016-07-24T01:15:49]i399: Apply complete, result: 0x80070643, restart: None, ba requested restart:  No

    Root of problems is " Error 1402.Could not open key: UNKNOWN\Components\324CA63DEADCBC143B7E2C51F1B12B61\9941930679BB7CF3F971B25F06CD2E13. Verify that you have sufficient access to that key, or contact your support personnel. "

    I did my research and discovered next:

    Registry key in question is: HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Installer\UserData\S-1-5-18\Components\324CA63DEADCBC143B7E2C51F1B12B61\9941930679BB7CF3F971B25F06CD2E13

    Key HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Installer\UserData\S-1-5-18\Components\324CA63DEADCBC143B7E2C51F1B12B61 looks good i.e. permissions are okay(if compare to sibling keys). This key has 3 REG_SZ values: 6A7A7B03915D2333EB3B1D50FE7C83A9, 9941930679BB7CF3F971B25F06CD2E13, C7D26816CBDC5D84A81EB3B81D2EB35C, they are accessible(contain path to file which actually exists). Also this key contains 4 subkeys, names equal to names of values   6A7A7B03915D2333EB3B1D50FE7C83A9, 9941930679BB7CF3F971B25F06CD2E13, 8AC9843965660A335ACA0EDEDE1BC7E3 (which are GUIDs of products who refferenced this component). And here is problem: these keys ARE NOT accessible at all. I cannot view their content by any tools I have(including offline registry editing). When navigation to these subkeys using RegEdit I getting this error instantly(MessageBox): 

    [Window Title]
Error Opening Key
[Content]
6A7A7B03915D2333EB3B1D50FE7C83A9 cannot be opened.
An error is preventing this key from being opened.
Details: Access is denied.
[OK]

    I do not know if some stupid application edited permissions on that key or it is broken hive file(attempted to replace hive file from backup in regback - nothing changed), but I just cannot fix it manually. It is impossible to force those key to re-inherit permissions from superkey, received another error message:

    [Window Title]
Security
[Content]
Registry Editor could not set security in the key currently selected, or some of its subkeys.

    Any suggestions how to fix this huge problem?

    Re-install system is not acceptable in any case. (Manually edit hive is acceptable of course, if it will work of course).

    Thanks

    Saturday, July 23, 2016 11:01 PM

Answers